CN108235636A - A kind of LRM B class front locking devices - Google Patents
A kind of LRM B class front locking devices Download PDFInfo
- Publication number
- CN108235636A CN108235636A CN201611155411.3A CN201611155411A CN108235636A CN 108235636 A CN108235636 A CN 108235636A CN 201611155411 A CN201611155411 A CN 201611155411A CN 108235636 A CN108235636 A CN 108235636A
- Authority
- CN
- China
- Prior art keywords
- lrm
- handle
- hook
- front locking
- fork arm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/14—Mounting supporting structure in casing or on frame or rack
- H05K7/1422—Printed circuit boards receptacles, e.g. stacked structures, electronic circuit modules or box like frames
- H05K7/1427—Housings
Abstract
The invention belongs to patents of invention, a kind of LRM B class front locking devices, it is formed including Type B handle and elastic fork arm component, in the extension of the Type B handle, lever described in increasing in hook top middle portion design and open button switch is freely rotated in Type B handle by axis connection, the hook constrains lever, and the elasticity fork arm is made of fork arm, baffle, screw rod and at least one set of spring assembly.The B classes front locking device width solves the technical issues of LRM module quick-replaceables for 10.5 millimeters of this pin joint latch hook quick-release components.With compatible processing, assembling equal error, the characteristics of continuous elastic is reliably connected between LRM and rack is kept.Pass through rational design, so that carry out adaptive connection, and button is increased in handle upper end by way of the cooperation of the arc surface of pin and hook between the hook of mini-B-type handle and elastic fork arm component, when realizing more LRM and installing side by side, since spacing is too small, the technical issues of can not operating.It ensure that the reliability connected between rack and LRM.
Description
Technical field
The technology is mainly used in aviation field, and achievement in research is mainly used in air environment cabinet and mounting bracket
In.
Background technology
(the abbreviation of Field Replaceable Unit as defined in GJB441 standards at present：LRU) using Type B locking apparatus, on cabinet,
Type B handle is installed, elastic fork arm component on mounting bracket is installed, is coordinated, realizes the preceding tightening of LRU.The device is through excessive
Year uses, superior performance, and connection is reliable.It is small with reference to LRM on the basis of this matured product, it is light-weight the characteristics of, carry out
Optimization and Miniaturization Design, reduce initial tension of spring, loss of weight design have been carried out to whole device, and increase top opening
Function.Verify that service condition is good, has a extensive future by exemplar development and certain type product.
The Front lock structure that LRU is used is as shown in Figure 1, Type B handle and elastic fork arm component add up to weight to be about 210
Gram.
Invention content
Technical solution of the present invention：
A kind of LRM B class front locking devices are formed including Type B handle and elastic fork arm component, in the Type B handle
On hook, button parts are equipped with close to babinet side.The lever is freely rotated in Type B handle by axis connection, the extension
Hook constrains lever.The elasticity fork arm is made of fork arm, baffle, screw rod and at least one set of spring assembly.It is locked before B classes
Device width is 10.5 millimeters.
It is small with reference to LRM on the basis of LRU B class Front lock matured products, it is light-weight the characteristics of, carry out
Optimization and Miniaturization Design increase the constraint of low side radial direction pin joint, reduce initial tension of spring, whole device is subtracted
Redesign, and top opening function is increased, the structure of the device is as shown in Figure 2.Dress is locked before elastic fork arm and small-sized B classes
It puts, it is characterised in that：It is lighter than the preceding latch assembly quality that previous LRU is used；Loss of weight is up to 42.9%.Elastic fork arm can root
According to rigging error and mismachining tolerance, fit clearance is automatically adjusted.The lever of the pin of elastic fork arm and small-sized B classes front locking device
Mating surface can adaptively be coordinated.
Invention content includes miniaturization, by the elastic fork arm component locked and minimized before the small-sized B classes of loss of weight, when more
When a LRM is mounted side by side, since LRM thickness is smaller, generally at 25 millimeters or so, hook is designed in handle base upper end, is linked up with
Realize the lock function of Type B handle.Gap between two B handles is difficult to reach into operation hook, therefore, is being linked up with
Top middle portion design increases opening button switch, can directly directly push the pressing of hook with 45 ° of angle in handle top
Position, you can realize the opening of the small-sized B classes handle of module.
Under conditions of 1.5kgLRM module 20g random vibration magnitudes are met, small-sized B classes front locking device is optimized
Loss of weight designs, and the weight after loss of weight is about 120 grams, and the weight than LRU Type B handles reduces 42.9%.
The small-sized B classes front locking device installation reliabilitys of this LRM can effectively overcome system assembling and mismachining tolerance, locking
Preload force value stabilization, after reaching set preload force value, elastic system can deform, and achieve the purpose that determine pulling force locking.Ensure
Effective connection between cabinet and mounting bracket, it is ensured that the reliability of structure interconnection.
Description of the drawings：
Fig. 1 is LRM B class front locking device front views
Fig. 2 is LRM B class front locking device side views
Application method
It is essentially identical with previous standard Type B locking device application method, cabinet is put into mounting bracket first, B handles
Lever put
Level is put, cabinet is pushed into mounting bracket, after guarantee after accurate positioning, upward cocked lever, until push-in is in place.This
When entire Front lock be installed in place.The process dismantled is exactly the opposite, when multiple LRM are mounted side by side, can pass through pressing
The button position on top is linked up with, opens Type B handle.
The present invention has the advantage that：
1. this technology uses elastic extension structure, the processing that can effectively solve in existing total interconnection architecture system misses
Difference and rigging error, while press-button structure is increased on hook top, it ensure that structure interconnection plug installation during more LRM installations
Demand.
It, can be in airborne products LRM 2. this technology product design is exquisite, small, light-weight, at low cost, good compatibility
In promote the use of.
Claims (4)
1. a kind of LRM B class front locking devices are formed including Type B handle and elastic fork arm component, it is characterised in that：In the B
The extension of type handle increases opening button switch in hook top middle portion design.
2. a kind of LRM according to claim 1 B class front locking devices, it is characterised in that：The lever is in Type B handle
Interior to be freely rotated by axis connection, the hook constrains lever.
3. a kind of LRM according to claim 1 B class front locking devices, it is characterised in that：The elasticity fork arm is by pitching
Bar, baffle, screw rod and at least one set of spring assembly are formed.
4. a kind of LRM according to claim 1 B class front locking devices, it is characterised in that：The B classes front locking device
Width is 10.5 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611155411.3A CN108235636A (en) | 2016-12-14 | 2016-12-14 | A kind of LRM B class front locking devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611155411.3A CN108235636A (en) | 2016-12-14 | 2016-12-14 | A kind of LRM B class front locking devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108235636A true CN108235636A (en) | 2018-06-29 |
Family
ID=62651173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611155411.3A Pending CN108235636A (en) | 2016-12-14 | 2016-12-14 | A kind of LRM B class front locking devices |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108235636A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109526176A (en) * | 2018-12-05 | 2019-03-26 | 中航光电科技股份有限公司 | A kind of boosting, which helps, pulls out airborne electronic equipment mounting structure |
| CN111246703A (en) * | 2020-01-12 | 2020-06-05 | 苏州浪潮智能科技有限公司 | Cabinet lock and server cabinet |
| CN112367778A (en) * | 2020-10-28 | 2021-02-12 | 浙江南都能源互联网运营有限公司 | Energy storage module convenient to dismouting |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040149369A1 (en) * | 2001-07-02 | 2004-08-05 | Shiyin Han | Production of regenerated leather by dry method |
| CN102083288A (en) * | 2010-12-09 | 2011-06-01 | 中国航空工业集团公司第六三一研究所 | LRM (Line Replaceable Module) module locking and plugging device |
-
2016
- 2016-12-14 CN CN201611155411.3A patent/CN108235636A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040149369A1 (en) * | 2001-07-02 | 2004-08-05 | Shiyin Han | Production of regenerated leather by dry method |
| CN102083288A (en) * | 2010-12-09 | 2011-06-01 | 中国航空工业集团公司第六三一研究所 | LRM (Line Replaceable Module) module locking and plugging device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109526176A (en) * | 2018-12-05 | 2019-03-26 | 中航光电科技股份有限公司 | A kind of boosting, which helps, pulls out airborne electronic equipment mounting structure |
| CN111246703A (en) * | 2020-01-12 | 2020-06-05 | 苏州浪潮智能科技有限公司 | Cabinet lock and server cabinet |
| CN112367778A (en) * | 2020-10-28 | 2021-02-12 | 浙江南都能源互联网运营有限公司 | Energy storage module convenient to dismouting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180629 |