CN104202934B

CN104202934B - Elastic locking device

Info

Publication number: CN104202934B
Application number: CN201410348778.1A
Authority: CN
Inventors: 吴林汉; 蒋学东
Original assignee: Shenzhen Fastprint Circuit Tech Co Ltd; Yixing Silicon Valley Electronic Technology Co Ltd
Current assignee: Shenzhen Fastprint Circuit Tech Co Ltd; Yixing Silicon Valley Electronic Technology Co Ltd
Priority date: 2014-07-21
Filing date: 2014-07-21
Publication date: 2017-03-22
Anticipated expiration: 2034-07-21
Also published as: CN104202934A

Abstract

The invention discloses an elastic locking device. The elastic locking device comprises a bracket, a spindle and an elastic piece, the spindle is provided with a tail with external threads, a hole with threads matched with the tail of the spindle is formed in the tail of the bracket, the spindle is arranged on the bracket through screwing the tail end in the hole, and the spindle is capable of rotating around the axle center thereof; the spindle is provided with a plurality of bumps, each bump has the structure which is reduced gradually along the screw-in direction, and several circles of spiral grooves are formed in the outer surfaces of the structures; the elastic piece comprises a fixed part and a flexible part capable of being deformed, the elastic piece is firmly connected with the bracket through the fixed part, a groove is opened in the flexible part, the spindle can pass through the groove, and the tail end of the flexible part is propped against a spiral groove matched with the same. By means of the spindle with the bumps and the flexible part matched with the spindle, the screw-in movement of the spindle is converted into the deformation of the flexible part, the deformed part fills the gap between a module and an insert box so as to adapt to the combination of different non-standard modules and insert boxes, the use is facilitated, and the structure is simple.

Description

A kind of elastic locking device

Technical field

The present invention relates to a kind of locking device for being applied to subrack.

Background technology

Subrack is because which is easy to use, firm and durable and be widely used in the industries such as communication, electric power, generally comprise housing and The module that need to be inserted on housing, because the restriction of technique, the gap between module and subrack will accomplish that tight fit needs pole High precision, in order to cost-effective, general way is that another addition locking bar carrys out adjusting elasticity degree between module and subrack, Module, subrack and locking bar are all standardized, can be interchangeable in theory, but be because between different manufacturers product , there is the nonstandard situation of hole between module and housing, and general locking bar be all firm in error when difference and production Property, once running into the gap of different size, general locking bar will be ineffective, except the locking of non-fabrication different size Bar, but this can increase cost again.

The content of the invention

In order to overcome the deficiencies in the prior art, the present invention to provide a kind of elastic locking device.

The technical solution adopted for the present invention to solve the technical problems is：

A kind of elastic locking device, including support, main shaft and shell fragment, main shaft is provided with one with externally threaded afterbody, support Tail end is provided with the threaded hole being adapted to therewith, and main shaft is rack-mount by way of by tail end advances through hole, and which can be around Pivot Point Center rotates；Main shaft is provided with some projections, and the projection includes structure diminishing along screw-in direction, outside structure Surface is provided with the spiral helicine groove of some circles；Shell fragment includes fixed part and the flexible portion that can be deformed upon, and which passes through fixed part It is fixed on support, in flexible portion, is provided with groove, be available for main shaft to extend there through, flexible portion tail end supports recessed in the spiral coordinated with which On groove.

Used as the further improved procedure of such scheme, flexible portion is arch.

Used as the further improved procedure of such scheme, raised is fusiformis or taper.

Used as the further improved procedure of such scheme, raised is in be equally spaced.

Used as the further improved procedure of such scheme, shell fragment includes at least a flexible portion.

Used as the further improved procedure of such scheme, the tail end of support is additionally provided with baffle plate, the spacing between baffle plate and hole Less than the maximum screw-in length of main shaft.

Used as the further improved procedure of such scheme, the head end of main shaft is the knob with anti-slop serrations.

The invention has the beneficial effects as follows：

It is provided by with raised main shaft and the flexible portion being adapted to therewith, is flexible portion by the screw-in conversion of motion of main shaft Deformation, with the gap being partially filled between module and subrack for deforming upon, so as to adapt to various nonstandard modules and subrack Between combination, easy to use, simple structure.

Description of the drawings

The present invention is further described with reference to the accompanying drawings and examples.

Fig. 1 is the structural representation of one embodiment of the invention；

Fig. 2 is the raised schematic diagram of one embodiment of the invention；

Fig. 3 is the schematic diagram of one embodiment of the invention shell fragment；

Fig. 4 is the assembling schematic diagram of one embodiment of the invention shell fragment and projection；

Fig. 5 is the assembling schematic diagram of one embodiment of the invention and cabinet.

Specific embodiment

The technique effect of the design, concrete structure and generation of the present invention is carried out clearly below with reference to embodiment and accompanying drawing Chu, it is fully described by, to be completely understood by the purpose of the present invention, scheme and effect.It should be noted that in situation about not conflicting Under, the feature in embodiment and embodiment in the application can be mutually combined.

It should be noted that if no special instructions, when a certain feature is referred to as " fixation ", " connection " in another feature, It can directly fix, be connected in another feature, it is also possible to fix indirectly, be connected in another feature.Additionally, this The description such as upper and lower, left and right used in invention is only the mutual alignment pass relative to each ingredient of the invention in accompanying drawing For system.

Additionally, unless otherwise defined, the technology of all of technology used herein and scientific terminology and the art The implication that personnel are generally understood that is identical.Term used in the description is not intended merely to describe specific embodiment herein, and not It is to limit the present invention.Term as used herein " and/or " include the arbitrary of one or more related Listed Items Combination.

With reference to Fig. 1, the structural representation of one embodiment of the invention is shown, including support 10, main shaft 20 and shell fragment 30, Preferably, support 10 is approximately " u "-shaped, is specially respectively arranged at the two ends with folding ear 101 in a base plate, and folding ear 101 is provided with hole, main shaft 20 by installing over the mount 10 by way of hole position on the folding ear of insertion both sides, and which is parallel with the base plate of support 10.

In another embodiment of support 10, the base plate of support 10 can not be parallel with main shaft 20, that is, be adapted to those moulds Block gap situation not for rectangle.

Main shaft 20 is provided with one with externally threaded afterbody 201, and the length of screw thread can be adjusted as needed, with afterbody on support 10 The hole of 201 adaptations is provided with female thread, and when main shaft 20 is rotated under the driving of external force, the engagement of internal and external threads can be along axle Advance to direction or retreat.

The tail end of support 10 is additionally provided with catch 102, and which is less than the maximum screw-in length of main shaft 20 with the distance of screwed hole, So, main shaft 20 is then spacing by catch 102 after certain length is screwed in, and prevents shell fragment 30 from damaging because deforming excessive.

20 head ends of main shaft are a knob 204 with anti-slop serrations, its can convenient use person with less power drive shaft 20 rotations.

See figures.1.and.2, be additionally provided with some raised 202 on main shaft 20, certain a part of edge on raised 202 or raised 202 The direction that main shaft 20 is screwed in is gradually reduced, and preferably, raised 202 is in shuttle shape or taper, has some circle helical forms on its surface Groove 203.

With reference to Fig. 3 and Fig. 4, some shell fragments 30 on support 10, are additionally provided with, which is made up of the preferable material of toughness, by outer masterpiece Used time can occur larger deformation, and the reinstatement that external force can be quickly after removing.30 points of shell fragment is fixed part 301 and flexibility Portion 302, wherein, fixed part 301 is fixedly connected with support 10, prevents shell fragment 30 to be subjected to displacement, and flexible portion 302 is preferably encircleed Shape, its one end are connected with fixed part 301, and the other end is suspended from the top of 301 place plane of fixed part, i.e., form gap therewith, The surface of arch is also provided with groove 303, and main shaft 20 is passed through from groove 303 and above-mentioned gap, and the tail end of flexible portion 302 is supported in groove On 203, each projection 202 corresponds to a shell fragment 30.

In another is embodiment, flexible portion 202 is trapezoidal.

Shell fragment 30 except it is above-mentioned comprising a flexible portion 302 in addition to, it is also possible to include multiple.

With reference to Fig. 5, after the slot in the insertion subrack 50 of module 40, locking device is inserted in gap therebetween, now Shell fragment 30 is in free state, and its arch top has a segment distance apart from the bottom surface of slot, as main shaft 20 is slowly screwed in, convex Play 202 to be also axially moveable therewith, and corresponding shell fragment 30 is fixed on support 10, so, in helical groove Under 203 compressing, flexible portion 302 deforms, and vault gradually rises, until withstanding slot bottom surface, so, just increases module Frictional force between 40 and groove walls so as to firmly can fix in a groove.When needing to be applied to other different size gaps Occasion when, it is only necessary to by screwing in or screwing out main shaft, adjust the deformation extent of flexible portion 302, can just reach well solid Determine effect.

It is more than that the preferable enforcement to the present invention is illustrated, but the invention is not limited to the enforcement Example, those of ordinary skill in the art on the premise of without prejudice to spirit of the invention can also be made a variety of equivalent variations or replace Change, the deformation or replacement of these equivalents are all contained in the application claim limited range.

Claims

1. a kind of elastic locking device, it is characterised in that：Including support, main shaft and shell fragment, the main shaft is provided with a band external screw thread Afterbody, the tail end of the support is provided with the threaded hole being adapted to therewith, and the main shaft is by screwing in the hole by afterbody Mode is installed on the bracket, and which can be rotated around Pivot Point Center；The main shaft is provided with some projections, and the projection includes Along the diminishing structure of screw-in direction, the outer surface of the structure is provided with the spiral helicine groove of some circles；The shell fragment includes There are fixed part and the flexible portion that can be deformed upon, it is affixed on the bracket which passes through fixed part, groove is provided with the flexible portion, It is available for the main shaft to extend there through, the flexible portion tail end is supported on the described spiral helicine groove coordinated with which.

2. locking device according to claim 1, it is characterised in that：The flexible portion is arch.

3. locking device according to claim 1 and 2, it is characterised in that：The projection is fusiformis or taper.

4. locking device according to claim 3, it is characterised in that：The projection is in be equally spaced.

5. locking device according to claim 3, it is characterised in that：The shell fragment includes at least a flexible portion.

6. the locking device according to claim 4 or 5, it is characterised in that：The tail end of the support is additionally provided with baffle plate, described The maximum screw-in length for being smaller than the main shaft between baffle plate and hole.

7. locking device according to claim 6, it is characterised in that：The head end of the main shaft is the knob with anti-slop serrations.