CN105188300A - Printed circuit board (PCB) clamp locking device - Google Patents
Printed circuit board (PCB) clamp locking device Download PDFInfo
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- CN105188300A CN105188300A CN201510631162.XA CN201510631162A CN105188300A CN 105188300 A CN105188300 A CN 105188300A CN 201510631162 A CN201510631162 A CN 201510631162A CN 105188300 A CN105188300 A CN 105188300A
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- block
- carve
- locking
- tail
- pcb board
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Abstract
The invention provides a printed circuit board (PCB) clamp locking device, which comprises a sunk independent radiating groove, a screw rod, a front cheese block, a first locking cheese block, a middle cheese block, a second locking cheese block, a tail cheese block and a spring, wherein the sunk independent radiating groove comprises a PCB clamp inserting groove and a locking groove; the locking groove is communicated with the PCB clamp inserting groove; limiting inserting openings are respectively formed in two ends of the locking groove along the length; a mounting hole is formed in the bottom of the sunk independent radiating groove; the screw rod is arranged in the locking groove and is inserted between two limiting inserting openings; a stepped turn-knob part is arranged at the head part of the screw rod; a thread is formed in the tail part of the screw rod; a head ring groove is formed in the inner side of the turn-knob part; a tail ring groove is formed in the outer side of the thread; the diameters of the head ring groove and the tail ring groove are matched with those of the limiting inserting openings; the front cheese block, the first locking cheese block, the middle cheese block, the second locking cheese block and the tail cheese block sequentially sleeve the screw rod from the head part of the screw rod; the contacting end surfaces of the front cheese block, the first locking cheese block, the middle cheese block, the second locking cheese block and the tail cheese block are matched with one another; the spring sleeves the screw rod and is located between the tail cheese block and the limiting inserting openings. According to the locking device, a PCB clamp can be effectively prevented from falling off due to vibration and impact; and the PCB clamp can be flexibly arranged on a cold plate according to the requirements.
Description
Technical field
The present invention relates to printed wiring board technical field, particularly a kind of pcb board card locking device.
Background technology
At present, what electronic application industry was a large amount of uses PCB (PrintedCircuitBoard, printed circuit board) subrack of integration module and 19 inches, in order to ensure the installation between PCB daughter board and motherboard, usually be used alone locking device to daughter board, avoid because of vibration and impact and pcb board is come off from subrack.
But most locking device is made by user's designed, designed in the market, structure is backwardness simply, unstable properties, there is no standardization, effectively can not avoid the phenomenon that the pcb board brought because of vibration and impact comes off from the slot of subrack, and locking device can only be used for, at cold drawing fixed dimension groove internal locking pcb board card, cannot adjusting as required board position substantially.
Summary of the invention
The object of the present invention is to provide a kind of pcb board card locking device, this locking device effectively can not only be avoided because of vibration and impact the phenomenon causing pcb board card to come off, and neatly pcb board card can be arranged on the fixed position on cold drawing as required.
For achieving the above object, a kind of pcb board card locking device provided by the invention, comprising:
Invaginating independence radiating groove, described invaginating independence radiating groove comprises pcb board card slot, the locking slot be communicated with described pcb board card slot, and described locking slot is respectively provided with a spacing socket along length two ends, is provided with installing hole bottom described invaginating independence radiating groove;
Be located in described locking slot the screw rod be inserted in described in two between spacing socket, described screw head is the turn-knob portion in step, afterbody is provided with screw thread, head annular groove is provided with inside described knob, be provided with afterbody annular groove outside described screw thread, diameter and the described spacing socket of described head annular groove and afterbody annular groove match;
Be sheathed on successively before on described screw rod from described screw head and carve block, block is carved in first locking, in carve block, block is carved in second locking and tail carves block, block is carved before described, in carve block and tail and carve block and be provided with the through hole matched with described screw diameter, and the through hole that described tail carves block is embedded with nut, and its internal thread and described screw flight match, described first locking carve block and described second lock carve block be provided with cross section be ellipse elongated slot, described elongated slot width of rebate is less than described screw diameter, carve before described block with described in carve the inclined end face that the relative end face of block is the center line symmetry about both ends of the surface, described first locking carve block both ends of the surface respectively with described before carve block and described in carve block relative end face match, described tail carve block with described in carve the inclined end face that the relative end face of block is the center line symmetry about both ends of the surface, the both ends of the surface that block is carved in described second locking carve block with described tail respectively and described in carve block relative end face match, carve block before described and carve with described tail the inclined end face that the relative end face of block is the center line symmetry about both ends of the surface,
And be sheathed on described screw rod and carve the spring between block and described spacing socket at described tail.
Preferably, the madial wall that the notch place of described elongated slot is relative is provided with groove, is provided with alignment reed in relative described groove.
Preferably, described first locking carve block and described second lock carve block-shaped identical be all truncated rectangular pyramids, comprise upper bottom surface and bottom surface, and the area of described upper bottom surface is less than the area of bottom surface, described elongated slot notch is positioned at described upper bottom surface.
Preferably, inner hexagonal hole is provided with in the outer face in described turn-knob portion.
Preferably, be provided with axial direction positioning device between described turn-knob portion and described spacing socket, described axial direction positioning device comprises the first plain washer, location collar and the second plain washer that set gradually from described turn-knob portion.
Preferably, described cross section is that the minor axis of oval elongated slot is greater than described screw diameter.
Preferably, described spring is Compress Spring.
Preferably, described through-hole aperture is greater than described screw diameter.
Compared with prior art, beneficial effect of the present invention is:
Pcb board card locking device provided by the invention carves block before arranging on screw rod, in carve block and tail carves block, and front carve block and in carve between block and and tail carve block and in carve to arrange respectively between block locking carve block (namely first lock carve fast and and second lock and carve block, be referred to as locking and carve block), and each is carved the corresponding contact-making surface of block to match, broken by the turn-knob of screw rod spacing to front carving block with the spacing socket of head of invaginating independence radiating groove, block is carved by the screw drive tail of screw rod tail, when rotating screw bolt, can drive tail carve block and in carve block moving axially along screw rod, the end face contacted owing to respectively carving block is inclined-plane, so fix front carving block, under tail carves block promotion, block is carved in locking can along the outside slippage in inclined-plane of contact, and the screw rod carving block owing to being equipped with each arranges in invaginating independence radiating groove, and pcb board card slot is communicated with locking slot, so carved the outside slippage of block by locking, just pcb board card is locked in invaginating independence radiating groove, achieve being locked of pcb board card.Because the bottom of invaginating independence radiating groove is provided with installing hole, therefore pcb board card can be arranged on the fixed position on cold drawing by the present invention as required neatly, enhances the flexibility that locking device uses, expands its scope of application and usage space.
In addition, the present invention also has the following advantages:
1, carve between block end face and the spacing socket of invaginating independence radiating groove afterbody at tail and be provided with tail springs, this spring is preferably Compress Spring, can effectively prevent the locking produced due to factors such as shaking, rock from loosening under pcb board card locking state.
2, carve in block due to two lockings and be configured with alignment reed respectively, when unlocking pcb board card, rotating screw bolt, tail is carved block and is moved axially on screw rod, before carve block invariant position on screw rod, simultaneously screw rod and the locking fit clearance of carving block length groove is much larger than the fit clearance of through hole of front carving block, under the radially outer active force of the generation of reed to screw rod that aligns is carved in block in locking, accelerate locking and carve block by screw rod radial direction along angled end-face slippage inwards, reach pcb board card unlocked position, pcb board card realizes ZIF, ensure that plug pcb board card time zero damage, improve the quality of production of pcb board card.
3, screw axial positioner can effectively prevent operating personnel when unlocking pcb board card because of the misoperation generation causing pcb board card to damage that causes screw rod to come off.
4, pcb board card locking device provided by the invention freely can arrange pcb board to be stuck in riding position on cold drawing by designer, flexible and convenient to use.
5, pcb board card locking device provided by the invention adopts special aluminium alloy extrusions, and hardness is high, and standardization degree is high; The application of multiple plating process, can meet the requirement of different suitable environment.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described:
Fig. 1 is the structural representation of screw rod in pcb board card locking device provided by the invention;
Fig. 2 is the structural representation of invaginating independence radiating groove in pcb board card locking device provided by the invention;
Fig. 3 is the using state figure of pcb board card locking device provided by the invention.
Wherein: carve block in 1-screw rod, 11-turn-knob portion, 12-annular groove, 13-first plain washer, 14-are located collar, 15-second plain washer, 16-spring, carved block before 2-, block is carved in 3-first locking, 31-elongated slot, 32-align reed, 4-, block is carved in 5-second locking, 6-tail carves block, 7-invaginating independence radiating groove, 71-PCB board slot, 72-locking slot, the spacing socket of 73-, 8-PCB board, 9-cold drawing.
Embodiment
As Figure 1-3, a kind of pcb board card locking device provided by the invention, comprise: invaginating independence radiating groove 7, invaginating independence radiating groove 7 comprises pcb board card slot 71, the locking slot 72 be communicated with pcb board card slot 71, locking slot 72 is respectively provided with a spacing socket 73 along length two ends, be provided with installing hole bottom invaginating independence radiating groove 7;
Be located in locking slot 72 screw rod 1 be plugged between two spacing sockets 73, screw rod 1 head is in step and is provided with the turn-knob portion 11 of inner hexagonal hole in outer face, afterbody is provided with screw thread, head annular groove 12 is provided with inside knob, be provided with afterbody annular groove 12 outside screw thread, diameter and the spacing socket 73 of head annular groove 12 and afterbody annular groove 12 match;
Be sheathed on successively before on screw rod 1 from screw rod 1 head and carve block 2, block 3 is carved in first locking, in carve block 4, block 5 is carved in second locking and tail carves block 6, before carve block 2, in carve block 4 and tail and carve block 6 and be provided with the through hole matched with screw rod 1 diameter, and through-hole aperture is greater than screw rod 1 diameter, the through hole that tail carves block 6 is embedded with nut, and its internal thread and screw rod 1 screw thread match, first locking is carved block 3 and second and is locked and carve block 5 and be provided with the elongated slot 31 that cross section is ellipse, the minor axis of the oval cross section of elongated slot 31 is greater than screw rod 1 diameter, elongated slot 31 width of rebate is less than screw rod 1 diameter, before carve block 2 with in carve the inclined end face that the relative end face of block 4 is the center line symmetry about both ends of the surface, first locking carve block 3 both ends of the surface respectively with front carve block 2 and in carve block 4 relative end face match, tail carve block 6 with in carve the inclined end face that the relative end face of block 4 is the center line symmetry about both ends of the surface, the both ends of the surface that block 5 is carved in second locking carve with tail respectively block 6 and in carve block 4 relative end face match, before carve block 2 and carve with tail the inclined end face that the relative end face of block 6 is the center line symmetry about both ends of the surface,
And be sheathed on screw rod 1 and carve the spring 16 between block 6 and spacing socket 73 at tail, this spring 16 is preferably Compress Spring.
As one preferred embodiment, the madial wall that the notch place of elongated slot 31 is relative is provided with groove, is provided with alignment reed 32 in relative groove.
As one preferred embodiment, the first locking is carved block 3 and second and is locked that to carve block 5 shape identical be all truncated rectangular pyramids, and comprise upper bottom surface and bottom surface, and the area of upper bottom surface is less than the area of bottom surface, elongated slot 31 notch is positioned at described upper bottom surface.
As one preferred embodiment, be provided with axial direction positioning device between turn-knob portion 11 and spacing socket 73, axial direction positioning device comprises the first plain washer 13, location collar 14 and the second plain washer 15 that set gradually from turn-knob portion 11.
Operation principle of the present invention is as follows:
When rotating screw bolt 1, tail carves block 6 carves block 5 angled end-face, tail springs 16, invaginating independence radiating groove 7 inner plane multiple restriction owing to being subject to the second locking, can not rotate, can only move axially along screw rod 1 with screw rod 1; Before to carve block 2 long to size and tail springs 16 active force owing to being limited to invaginating independence radiating groove 7, invariant position on screw rod 1, is limited to independent radiating groove inner plane simultaneously and block 3 angled end-face is carved in the first locking, and front block 2 of carving also can not rotate with screw rod 1; Rotating screw bolt 1 can drive tail carve block 6 with in carve block 4 and move axially along screw rod 1, so the first locking carve fast and the second locking carve soon in carve block 4, tail carves block 6 and before carve block 2 acting in conjunction under, along inclined-plane the moving radially by screw rod 1 of joint, also just increase or reduce the width of the latch assembly that screw rod 1 is formed with each voussoir, when so pcb board card 8 is plugged in the pcb board card slot 71 in invaginating independence radiating groove 7, the change width of locking slot 72 internal locking assembly also just achieves locking and the unblock of pcb board card 8.
During concrete use, invaginating independence radiating groove 7 screw and cold drawing 9 are tightened to one, and pcb board card 8 inserts independent radiating groove headspace.
As pcb board card 8 will be locked, rotate clockwise screw rod 1, tail is carved block 6 and is moved axially to screw rod 1 cephalad direction on screw rod 1, by front carve block 2, in carve the angled end-face that block 4 and tail carve each adaptation of block 6 self, promotion first locking is carved block 3, second locking and is carved block 5 by screw rod 1 radial direction along the outside slippage of angled end-face, because invaginating independence radiating groove 7 groove width is fixed dimension, two lockings are carved block and are just locked integral by pcb board card 8 and independent radiating groove, realize being locked of pcb board card 8.
As pcb board card 8 will be unlocked, rotate counterclockwise screw rod 1, tail carves block 6 on screw rod 1 to screw rod 1 tail end to moving axially, owing to front carving block 2 invariant position on screw rod 1, simultaneously screw rod 1 and the locking fit clearance of carving block elliptical aperture is much larger than the fit clearance of through hole of front carving block 2, under the radial forces of the reed 32 pairs of screw rods 1 that align is carved in block in locking, locking carves block by screw rod 1 radial direction along angled end-face slippage inwards, reaches pcb board card 8 unlocked position.
Above-mentioned execution mode is intended to illustrate that the present invention can be professional and technical personnel in the field and realizes or use; modifying to above-mentioned execution mode will be apparent for those skilled in the art; therefore the present invention includes but be not limited to above-mentioned execution mode; any these claims or specification of meeting describes; meet and principle disclosed herein and novelty, the method for inventive features, technique, product, all fall within protection scope of the present invention.
Claims (8)
1. a pcb board card locking device, is characterized in that, comprising:
Invaginating independence radiating groove, described invaginating independence radiating groove comprises pcb board card slot, the locking slot be communicated with described pcb board card slot, and described locking slot is respectively provided with a spacing socket along length two ends, is provided with installing hole bottom described invaginating independence radiating groove;
Be located in described locking slot the screw rod be inserted in described in two between spacing socket, described screw head is the turn-knob portion in step, afterbody is provided with screw thread, head annular groove is provided with inside described knob, be provided with afterbody annular groove outside described screw thread, diameter and the described spacing socket of described head annular groove and afterbody annular groove match;
Be sheathed on successively before on described screw rod from described screw head and carve block, block is carved in first locking, in carve block, block is carved in second locking and tail carves block, block is carved before described, in carve block and tail and carve block and be provided with the through hole matched with described screw diameter, and the through hole that described tail carves block is embedded with nut, and the internal thread of described nut and described screw flight match, described first locking carve block and described second lock carve block be provided with cross section be ellipse elongated slot, described elongated slot width of rebate is less than described screw diameter, carve before described block with described in carve the inclined end face that the relative end face of block is the center line symmetry about both ends of the surface, described first locking carve block both ends of the surface respectively with described before carve block and described in carve block relative end face match, described tail carve block with described in carve the inclined end face that the relative end face of block is the center line symmetry about both ends of the surface, the both ends of the surface that block is carved in described second locking carve block with described tail respectively and described in carve block relative end face match, carve block before described and carve with described tail the inclined end face that the relative end face of block is the center line symmetry about both ends of the surface,
And be sheathed on described screw rod and carve the spring between block and described spacing socket at described tail.
2. a kind of pcb board card locking device according to claim 1, it is characterized in that, the relative madial wall that described elongated slot is positioned at notch place is provided with groove, is provided with alignment reed in relative described groove.
3. a kind of pcb board card locking device according to claim 1 and 2, it is characterized in that, described first locking carve block and described second lock carve block-shaped identical be all truncated rectangular pyramids, comprise upper bottom surface and bottom surface, and the area of described upper bottom surface is less than the area of bottom surface, described elongated slot notch is positioned at described upper bottom surface.
4. a kind of pcb board card locking device according to claim 1, is characterized in that, be provided with inner hexagonal hole in the outer face in described turn-knob portion.
5. a kind of pcb board card locking device according to claim 1 or 4, it is characterized in that, be provided with axial direction positioning device between described turn-knob portion and described spacing socket, described axial direction positioning device comprises the first plain washer, location collar and the second plain washer that set gradually from described turn-knob portion.
6. a kind of pcb board card locking device according to claim 1, is characterized in that, described cross section is that the minor axis of the elongated slot of ellipse is greater than described screw diameter.
7. a kind of pcb board card locking device according to claim 1, it is characterized in that, described spring is Compress Spring.
8. a kind of pcb board card locking device according to claim 1, it is characterized in that, described through-hole aperture is greater than described screw diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510631162.XA CN105188300B (en) | 2015-09-22 | 2015-09-22 | A kind of pcb board card locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510631162.XA CN105188300B (en) | 2015-09-22 | 2015-09-22 | A kind of pcb board card locking device |
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| Publication Number | Publication Date |
|---|---|
| CN105188300A true CN105188300A (en) | 2015-12-23 |
| CN105188300B CN105188300B (en) | 2018-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510631162.XA Active CN105188300B (en) | 2015-09-22 | 2015-09-22 | A kind of pcb board card locking device |
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| CN (1) | CN105188300B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105697480A (en) * | 2016-01-05 | 2016-06-22 | 王付华 | Pressing-plate-type locker |
| CN106856546A (en) * | 2017-02-27 | 2017-06-16 | 新乡北方车辆仪表有限公司 | Image analysis processing card |
| CN110799017A (en) * | 2019-10-12 | 2020-02-14 | 重庆长安工业(集团)有限责任公司 | Fully-sealed case heat dissipation structure with cold plate provided with air duct |
| CN111480398A (en) * | 2017-12-14 | 2020-07-31 | 西门子股份公司 | Communication module for a communication or automation device |
| CN111963524A (en) * | 2020-07-16 | 2020-11-20 | 成都智明达电子股份有限公司 | Mechanical locking design method for air cooling module |
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| US5290122A (en) * | 1992-11-30 | 1994-03-01 | Eg&G Birtcher, Inc. | Printed circuit board retainer |
| CN201869479U (en) * | 2010-11-24 | 2011-06-15 | 王付华 | PCB slot locking device |
| CN104747637A (en) * | 2015-04-21 | 2015-07-01 | 成都萨伯电子应用科技有限公司 | Novel spring plate locking strip |
| CN204482206U (en) * | 2015-03-20 | 2015-07-15 | 王付华 | A kind of pcb board groove locking device |
| CN204968306U (en) * | 2015-09-22 | 2016-01-13 | 王付华 | PCB integrated circuit board locking device |
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2015
- 2015-09-22 CN CN201510631162.XA patent/CN105188300B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5290122A (en) * | 1992-11-30 | 1994-03-01 | Eg&G Birtcher, Inc. | Printed circuit board retainer |
| CN201869479U (en) * | 2010-11-24 | 2011-06-15 | 王付华 | PCB slot locking device |
| CN204482206U (en) * | 2015-03-20 | 2015-07-15 | 王付华 | A kind of pcb board groove locking device |
| CN104747637A (en) * | 2015-04-21 | 2015-07-01 | 成都萨伯电子应用科技有限公司 | Novel spring plate locking strip |
| CN204968306U (en) * | 2015-09-22 | 2016-01-13 | 王付华 | PCB integrated circuit board locking device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105697480A (en) * | 2016-01-05 | 2016-06-22 | 王付华 | Pressing-plate-type locker |
| CN106856546A (en) * | 2017-02-27 | 2017-06-16 | 新乡北方车辆仪表有限公司 | Image analysis processing card |
| CN111480398A (en) * | 2017-12-14 | 2020-07-31 | 西门子股份公司 | Communication module for a communication or automation device |
| CN111480398B (en) * | 2017-12-14 | 2021-07-09 | 西门子股份公司 | Communication module for a communication or automation device |
| CN110799017A (en) * | 2019-10-12 | 2020-02-14 | 重庆长安工业(集团)有限责任公司 | Fully-sealed case heat dissipation structure with cold plate provided with air duct |
| CN111963524A (en) * | 2020-07-16 | 2020-11-20 | 成都智明达电子股份有限公司 | Mechanical locking design method for air cooling module |
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| CN105188300B (en) | 2018-04-24 |
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