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CN103633576A - Hidden bracket - Google Patents

Hidden bracket Download PDF

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Publication number
CN103633576A
CN103633576A CN201310565101.9A CN201310565101A CN103633576A CN 103633576 A CN103633576 A CN 103633576A CN 201310565101 A CN201310565101 A CN 201310565101A CN 103633576 A CN103633576 A CN 103633576A
Authority
CN
China
Prior art keywords
underframe
support
hinged
connecting rod
pole
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.)
Granted
Application number
CN201310565101.9A
Other languages
Chinese (zh)
Other versions
CN103633576B (en
Inventor
黄平
穆贝贝
方春阳
王卫红
袁平定
张东勇
李明道
杜永平
吴睿智
杨珅
张香芍
王耀武
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
Xuji Group Co Ltd
XJ Electric Co Ltd
Original Assignee
State Grid Corp of China SGCC
Xuji Group Co Ltd
XJ Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by State Grid Corp of China SGCC, Xuji Group Co Ltd, XJ Electric Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201310565101.9A priority Critical patent/CN103633576B/en
Publication of CN103633576A publication Critical patent/CN103633576A/en
Application granted granted Critical
Publication of CN103633576B publication Critical patent/CN103633576B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The invention discloses a hidden bracket, which comprises an underframe, wherein the underframe is assembled with guide rails fixedly arranged on a cabinet body in a sliding way to realize the extension and hiding of the bracket; a support is hinged to the underframe, is retracted when the bracket is hidden, is expanded when the bracket extends, and comprises support rods extending along straight lines. The hidden bracket is characterized in that the support also comprises underframe connecting rods, wherein one end of each underframe connecting rod is integrated or fixedly connected with the corresponding support rod, and the other end of each underframe connecting rod is correspondingly hinged to the underframe; hinging central axes on hinged parts, correspondingly hinged to the underframe, on the support rods and the underframe connecting rods are eccentric; the underframe, the underframe connecting rods and the support rods form a connecting rod mechanism capable of retracting the support rods to positions at which the extension directions of the support rods are parallel to the sliding direction of the underframe when the support is retracted. According to the bracket, the support rods can be retracted to the positions at which the extension directions of the support rods are parallel to the sliding direction of the underframe, so that the space occupied by the support is maximally reduced, and the requirement of the bracket on the space of the cabinet body is lowered.

Description

A kind of concealed support
Technical field
The present invention relates to a kind of concealed support.
Background technology
At present, in switching on and shutting down, heavier switching mechanism is cashier's office in a shop installed or is carried out site examining and repairing while safeguarding, need to use transfer car(buggy) more, by transfer car(buggy), provide transfer platform, be convenient to pick and place switching mechanism.But transfer car(buggy) area occupied is larger, and site area is had relatively high expectations.In the limited place of area, transfer car(buggy) limited amount, and then can affect the overhaul efficiency to switching mechanism.
In the Chinese utility model patent specification that is CN2290935Y at Granted publication number, a kind of Collaposible folding bracket can be applicable on switch cabinet is disclosed, foldable bracket comprises for stretching out to realize bracket with the guide rail slidable fit being installed on cabinet, hiding underframe, on underframe, be hinged with in the concealed withdrawal of bracket, the support opening when bracket stretches out, underframe is equipped with upper frame by described support and middle link, upper frame, underframe, the hinged formation quadric chain of support and middle link, in the middle of described, link comprises parallel two connecting rods that extend, the two ends of two connecting rods are hinged with upper frame and underframe respectively, described support comprises parallel two poles and the bridging bar of bridge joint between two poles extending, two poles are straight-bar and are hinged with upper frame and underframe respectively.When not needing installation or inspection switch mechanism, bracket is pushed along guide rail in the compartment of cabinet bottom so that bracket is hidden, in use, open cabinet door, to outer guide rail bearing of trend, pull out bracket, open support, two poles are outwards rotated around the hinged center of pole and underframe, upper frame is moved to working position in level under the effect of quadric chain, now, two poles of support are supported on the ground so that whole bracket is formed and to be supported, then can will install or the switchgear of repair and maintenance moves on upper frame to install normally and repair and maintenance, for after Maintenance and Repair complete, two poles of support are rotated to pack up pole in the hinged middle mind-set cabinet of itself and underframe, simultaneously, upper frame level under the effect of quadric chain moves down, then along guide rail, bracket is pushed in cabinet and stashed.
But two in above-mentioned support along linearly extended pole directly and upper frame, underframe be hinged; when pole is packed up; because self size of quadric chain is limit; the glide direction inclination structure of the bearing of trend of the pole of packing up and described underframe forms an angle; pole can not be folded to the position paralleling with the glide direction of underframe; this just requires the space of placing bracket in cabinet to want enough large; otherwise cannot normally reclaim pole; and then make rack volume larger, limited the range of application of this concealed support.
Summary of the invention
The object of this invention is to provide a kind of concealed support, to solve on support of the prior art, along linearly extended pole, be directly hinged with underframe and cause pole cannot be recycled to the technical problem of the position parallel with underframe glide direction.
For achieving the above object, the technical scheme of concealed support provided by the present invention is: a kind of concealed support, comprise for stretching out to realize bracket with the guide rail slidable fit being installed on cabinet, hiding underframe, on underframe, be hinged with for regaining when bracket is hidden, the support opening when bracket stretches out, support comprises along linearly extended pole, described support also comprises that one end and pole are wholely set or are connected, the other end hinged underframe connecting rod corresponding to underframe, the hinged central axis arranged off-centre of the hinged place that pole is hinged with corresponding and underframe on described underframe connecting rod, described underframe, underframe connecting rod and pole are configured for pole being recycled to can being made the linkage of the bearing of trend of pole and the parallel position of the glide direction of described underframe when reclaiming support.
On described underframe, by described support, middle link, support and be provided with upper frame, the corresponding hinged formation linkage of upper frame, support, middle link and underframe, on described upper frame, underframe, walk abreast and arrange with the hinged central axis of middle link and the corresponding hinged hinged place of support respectively, described support also comprise one end be wholely set with pole or be connected, the other end and the corresponding hinged upper frame connecting rod of upper frame, described upper frame connecting rod and described underframe connecting rod are parallel to be arranged, the length of upper frame connecting rod is greater than the length of underframe connecting rod.
Described upper frame connecting rod and underframe connecting rod be arrange vertical with pole all.
Described middle link comprises L-type connecting rod, and L-type connecting rod has the stock section being hinged with described underframe and the quarter butt section being hinged with described upper frame.
Described pole is upper rack posts, described support also comprises by folding hinge and the hinged lower fulcrum bar of described upper rack posts, the hinged central axis of described folding hinge is positioned at a side of upper and lower pole, and lower fulcrum bar has with the folding position of the relative parallel fold of upper rack posts and relatively opens the support level with Support bracket with upper rack posts in the central axis rotation process around described folding hinge.
Described is upper, between lower fulcrum bar, be provided with for lower fulcrum bar being remained on to the holding device of support level and/or folding position, holding device comprises by the hinged holding plate of one of them pole in jointed shaft and described two poles, the axis of jointed shaft is parallel with the hinged central axis of described folding hinge, on holding plate, offer with described two poles in another pole on the slotted hole that is slidably matched of the projection that convexes with, this slotted hole comprises the straight hole section of radially extending along jointed shaft being interconnected and the arcuate socket section of circumferentially extending along jointed shaft, holding plate makes projection enter described arcuate socket section upwards projection is carried out spacing and then lower fulcrum bar remained on to the support holding position of support level and/or have and make projection enter arcuate socket section upwards projection is carried out spacing and then lower fulcrum bar remained on to the folding holding position of folding position in jointed shaft footpath by straight hole section in jointed shaft footpath by straight hole section when lower fulcrum bar is positioned at folding position having in jointed shaft rotation process when lower fulcrum bar is positioned at support level.
Described holding device also comprises being sleeved on forces holding plate to rotate so that projection slides to the torsion spring of the active force away from straight hole section one side of described arcuate socket section for applying to holding plate on described jointed shaft.
Between described upper and lower pole, be provided with dead point holding device, the lower dead point holding device of crossing comprises that correspondence is arranged on two extension spring connecting portions on upper and lower pole and is arranged on applying and forcing lower fulcrum bar to cross around the hinged central axis of folding hinge the tension spring that rotate at dead point to lower fulcrum bar between two extension spring connecting portions.
Described underframe is provided with the locking system that stretches out cabinet for preventing bracket misoperation, locking system comprises the locking bar on underframe that is slidedly assemblied in of anticreep, the end of locking bar has the dead bolt for coordinating with described cabinet thrust, underframe is provided with for stretching out underframe at locking bar sliding process for dead bolt, the opening of retraction underframe, between underframe and locking bar, be provided with to locking bar and apply the spring that forces dead bolt to stretch out underframe, on described locking bar, be also integrally formed with or be fixed with for applying to locking bar and overcome acting force of the spring to force dead bolt retraction underframe and then to realize the manual unlocking piece of the active force of release.
Between described underframe and support, be provided with dead point holding device, the upper dead point holding device of crossing comprises that correspondence is arranged on two extension spring connecting portions on underframe and support and is arranged on applying and forcing the hinged central axis of with the underframe corresponding hinged place of support on described underframe connecting rod to cross the upper extension spring that rotate at dead point to support between two extension spring connecting portions respectively.
The invention has the beneficial effects as follows: in concealed support provided by the present invention, pole on support is linked together by underframe connecting rod and underframe, and underframe, underframe connecting rod and pole form linkage, when needs reclaim support, rotating pole and underframe connecting rod makes the hinged central axis of the corresponding hinged place of pole on underframe connecting rod rotate to reclaim, hinged central axis arranged off-centre due to the pole hinged place hinged with corresponding and underframe on described underframe connecting rod, when reclaiming support, pole being recycled to can be made to the parallel position of the bearing of trend of pole and the glide direction of underframe, farthest reduced the shared space of support of reclaiming, make this concealed support not high to the space requirement of cabinet of this bracket is installed, expanded the range of application of concealed support, also be conducive to use the Miniaturization Design of the cabinet of this concealed support simultaneously.
Further, the corresponding hinged formation linkage of upper frame, support, middle link and underframe, and the pole on support is hinged by upper frame connecting rod and upper frame, like this, in the process of opening, reclaim support, can further control rising and the whereabouts of upper frame under linkage effect, and then adjust the height of bracket is adjusted.And, make the length of upper frame connecting rod be greater than the length of underframe connecting rod, be also in order to guarantee the normal recovery to pole.
Further, upper frame connecting rod and underframe connecting rod be arrange vertical with pole all, is convenient to design and installation, and profile is comparatively attractive in appearance, is also the shared space of support in order further to reduce to make to regain on the other hand.
Further, L-type connecting rod can effectively be realized the evolution between upper frame, underframe in opening, reclaim support process, guarantees the normal operation of linkage.
Further, support also comprises by folding hinge and the hinged lower fulcrum bar of upper bracket, like this, can be so that bracket can be applicable to bearing height to have the place of requirement, can expand the scope of application of bracket, can be so that the shared space minimum of the support after folding and lower fulcrum bar can parallelly with upper rack posts be folded.
Further, between upper and lower pole, be provided with for lower fulcrum bar being remained on to the holding device of support level and/or folding position, holding device comprises holding plate, when control lower fulcrum bar around the hinged central axis of folding hinge between support level and folding position during normal rotation, be accompanied by holding plate around the rotation of jointed shaft, projection will slide in the straight hole section of the slotted hole at holding plate, guarantees normally opening and regaining of lower fulcrum bar.And when lower fulcrum bar turns to support level, open support, now, holding plate is positioned at support holding position, make projection enter arcuate socket section and then in jointed shaft footpath and upwards to projection, carry out spacing from straight hole section, thereby by projection, holding plate and jointed shaft, in jointed shaft footpath, upwards realize spacing to upper and lower pole, and then make lower fulcrum bar effectively to remain on support level, prevent lower fulcrum bar misoperation and cause lower fulcrum bar to depart from support level.And when lower fulcrum bar turns to folding position, regain support, now, holding plate is positioned at folding holding position, make projection enter arcuate socket section and then in jointed shaft footpath and upwards to projection, carry out spacing from straight hole section, thereby by projection, holding plate and jointed shaft, in jointed shaft footpath, upwards realize spacing to upper and lower pole, and then make lower fulcrum bar effectively to remain on folding position, prevent lower fulcrum bar misoperation and cause lower fulcrum bar to depart from folding position.
Further, holding device is also combined with torsion spring, when holding plate turns to support holding position or folding holding position, torsion spring will drive holding plate to rotate, make projection slide to the side away from straight hole section of the arcuate socket section of holding plate, during normal use, need to manually overcome torsion spring active force and promote holding plate rotation so that projection skids off and could realize release from arcuate socket section, effectively raise the maintenance effect of holding device and the installation capability of bracket.
Further, dead point holding device was set between upper and lower pole, when rotating lower fulcrum bar, cross behind dead point, tension spring rotates along the trend of rotating hauling lower fulcrum bar, be convenient to open, fold thrust, because tension spring applies active force to lower fulcrum bar all the time, can effectively guarantee the current state of lower fulcrum bar after turning over dead point on the other hand, can arbitrarily not rotate backward and cause having an accident.
Further, locking system is set on underframe, this locking system can effectively improve the security performance of bracket in cabinet.After bracket is pushed in cabinet, under spring action, force locking bar to slide, dead bolt stretches out underframe and coordinates with cabinet thrust is spacing, prevents that bracket from arbitrarily deviating from from cabinet.And when needs are pulled out bracket, control manual unlocking piece to pull locking bar to slide, after overcoming the active force of spring, force dead bolt retraction underframe, enter locking system release, then bracket freely can be released.
Further, dead point holding device had been set between underframe and support, when swinging mounting is crossed behind dead point, upper extension spring is rotated along the trend of rotating hauling support, be convenient to open, reclaim support, because upper extension spring applies active force to support all the time, can effectively guarantee the current state of support after turning over dead point on the other hand, can arbitrarily not rotate backward and cause having an accident.
Accompanying drawing explanation
Fig. 1 is the structural representation (bracket is in stretching out state) of a kind of embodiment of concealed support provided by the present invention;
Fig. 2 is A place enlarged drawing in Fig. 1;
Fig. 3 is the structural representation of concealed support shown in Fig. 1 in hidden state;
Fig. 4 is the structural representation of underframe shown in Fig. 1;
Fig. 5 is B place enlarged drawing in Fig. 4;
Fig. 6 is the structural representation after the upset of upper frame shown in Fig. 1;
Fig. 7 is C place enlarged drawing in Fig. 6;
Fig. 8 is the structural representation (support is in open mode) of support shown in Fig. 1 and middle link;
Fig. 9 is D place enlarged drawing in Fig. 8 (in figure, the corresponding end of torsion spring is not connected with holding plate, the corresponding end of torsion spring and holding plate should be kept being connected during use);
The structural representation that Figure 10 is support shown in Fig. 8 when folding (holding plate in figure shown in solid line represents that holding plate is positioned at folding holding position, and the holding plate shown in dotted line represents holding plate when supporting holding position and the position relationship of projection).
Embodiment
As shown in Fig. 1 to 10, a kind of embodiment of concealed support, bracket in this embodiment comprises for stretching out to realize bracket with guide rail 5 slidable fit that are installed on cabinet, hiding underframe 1, on underframe 1, be hinged with for regaining when bracket is hidden, the support 3 opening when bracket stretches out, underframe 1 is by support 3, middle link supports and is provided with upper frame 2, upper frame 2, support 3, middle link and the corresponding hinged formation linkage of underframe 1, and upper frame 2, on underframe 1, the hinged central axis of the hinged place corresponding with middle link and support 3 is parallel arranges, upper frame 2, underframe 1 place plane is all parallel along the glide direction of guide rail 5 with underframe 1.During use, underframe 1 is pulled out along guide rail 5, then support 3 is opened, and bracket is formed and supported, and when opening support 3, support 3 will move with upper frame 2, under the effect of linkage, upper frame 2 be moved up.And when needs are hidden in cabinet by bracket, support 3 is regained, under the effect of linkage, upper frame 2 moves down, and then bracket is slipped in cabinet along guide rail 5.
Underframe 1 in the present embodiment comprises that one group of sideskid being arranged symmetrically with 11, two interior plates 12, supporting bracket 13 and transverse plates 14 form, two sideskids 11 and guide rail 5 main bodys are all " U " type, sideskid 11 one end are provided with baffle plate 112, the corresponding end of guide rail 5 is provided with installing hole, at the in-built limited location screw 51 of installing hole.The sideskid 9 of underframe 1 can directly snap onto in guide rail 5, along guide rail 5, carries out parallel sliding, realizes the taking-up of bracket and puts into the function of cabinet.When bracket is fetched into outermost, baffle plate 112 and the stop screw 51 of sideskid 11 collide, and guarantee when bracket takes out can from cabinet, not come off.
Upper frame 2 in the present embodiment is by one group of symmetrical supporting plate 22, shrouding 23, fagging 24 and one group of symmetrical working track 21 form, being fixedly mounted on supporting plate 22 of working track 21 correspondences, and in one end of supporting plate 22, be provided with the locking system 6 that stretches out cabinet for preventing bracket misoperation, locking system 6 comprises the locking bar 61 on the supporting plate that is slidedly assemblied in underframe 22 of anticreep, the end of locking bar 61 has the dead bolt 63 for coordinating with described cabinet thrust, the end of dead bolt 63 has the block plane 632 for coordinating with described cabinet thrust block and deviates from the inclined-plane 631 of described block plane layout, on the supporting plate 22 of underframe 2, be provided with for stretching out underframe 2 at locking bar 61 sliding processes for dead bolt 63, the opening 222 of retraction underframe 2, between the supporting plate 22 of underframe 2 and locking bar 61, be provided with to locking bar 61 and apply the spring 64 that forces dead bolt 63 to stretch out underframe, spring 64 is extension spring, one end and the locking bar of spring are connected, the guide plate 62 being installed with on the other end and supporting plate 22 is connected, on guide plate 62, offer the pilot hole sliding for locking bar 61 guiding, in addition, on locking bar 61, be also wholely set to be useful on to locking bar 61 and apply and overcome spring 64 active forces to force dead bolt retraction underframe and then to realize the manual unlocking piece 65 of the active force of release.When bracket is put into cabinet, due to the thrusting action of cabinet, cabinet is pressed in top on the inclined-plane 631 of end of dead bolt 63, and then dead bolt 63 is pushed in underframe 2, and dead bolt retraction underframe, to allow cabinet, makes bracket can put into smoothly cabinet.Bracket is being put into after cabinet, and locking bar 61 drives the protruding supporting plate 22 of dead bolt 63 under the effect of spring 64, and the block plane 632 of dead bolt 63 ends is stuck with the corresponding portion in cabinet side thrust, and then guarantees that bracket can not go out cabinet by automatic trip.And when needs stretch out bracket from cabinet, pull manual unlocking piece 65, and after overcoming the active force of spring 64, by locking bar 61, with in dead bolt 63 retraction underframe 2, allowed cabinet side, bracket can be stretched out smoothly.
Middle link in the present embodiment comprises two L-type connecting rods 9, and L-type connecting rod 9 has the stock section 91 being hinged with described underframe 1 and the quarter butt section 92. being hinged with described upper frame 2
Support 3 in the present embodiment comprises a pair of upper rack posts 31, a pair of lower fulcrum bar 32 and be respectively used to the bridging bar 33 of bridge joint between two upper rack posts and two lower fulcrum bars, on, lower fulcrum bar all extends along straight line, and each lower fulcrum bar 32 is hinged with corresponding upper rack posts 31 by folding hinge 10, the top of each upper rack posts 31 is furnished with respectively upper frame connecting rod 34 and underframe connecting rod 35 successively along upper rack posts bearing of trend, one end of upper frame connecting rod 34 and upper rack posts 31 are wholely set, the other end is corresponding hinged with upper frame 2, one end of underframe connecting rod 35 is wholely set with upper rack posts 31, the other end is corresponding hinged with underframe 1, upper frame connecting rod 34 and parallel layout of described underframe connecting rod 35, upper frame connecting rod 34 and all settings vertical with upper rack posts 31 of underframe connecting rod 35, and the length of upper frame connecting rod 34 is greater than the length of underframe connecting rod 35, upper bracket 31 is by underframe connecting rod 35 and described underframe connecting rod 35 and hinged central axis arranged off-centre hinged place corresponding to underframe 1, underframe 1, underframe connecting rod 35 and upper rack posts 31 are configured for upper rack posts 31 to be recycled to when reclaiming support the linkage that makes the bearing of trend of the upper rack posts position parallel with the glide direction of described underframe 1.
Upper rack posts 31 is hinged by folding hinge 10 and lower fulcrum bar 32, the hinged central axis of folding hinge 10 is positioned at a side of upper and lower pole, lower fulcrum bar 32 has with the folding position of upper rack posts 31 relative parallel folds and relatively opens the support level with Support bracket with upper rack posts 31 in the central axis rotation process around described folding hinge 10, and in the bottom of lower fulcrum bar 32, is provided with adjustment bolt 8.And upper, between lower fulcrum bar, be provided with for lower fulcrum bar 32 being remained on to the holding device 7 of support level and folding position, holding device 7 comprises by the hinged holding plate 72 of jointed shaft 71 and upper rack posts 31, the axis of jointed shaft 71 is parallel with the hinged central axis of described folding hinge 10, on holding plate 72, offer with described lower fulcrum bar 31 on the slotted hole that is slidably matched of the projection 76 that convexes with, this slotted hole comprises the straight hole section 75 of radially extending along jointed shaft 71 being interconnected and the arcuate socket section 73 of circumferentially extending along jointed shaft 71, holding plate 72 makes projection 76 enter described arcuate socket section 73 upwards projection 76 is carried out spacing and then lower fulcrum bar 32 remained on to the support holding position of support level and have and make projection 76 enter arcuate socket section 73 upwards projection 76 is carried out spacing and then lower fulcrum bar 32 remained on to the folding holding position of folding position in jointed shaft 71 footpaths by straight hole section 75 in jointed shaft 71 footpaths by straight hole section 75 when lower fulcrum bar 32 is positioned at folding position having in jointed shaft 71 rotation processes when lower fulcrum bar 32 is positioned at support level, on holding plate 72, be integrally formed with pushed section 74.And holding device herein also comprises being sleeved on forces holding plate to rotate so that projection 76 slides to the torsion spring 73 of the active force away from straight hole section one side of described arcuate socket section 73 for applying to holding plate 72 on described jointed shaft 71, one end of torsion spring 73 hangs on upper rack posts 31, the other end is for being connected with holding plate 72.
In addition, between upper and lower pole, be provided with dead point holding device, the lower dead point holding device of crossing comprises that correspondence is arranged on two extension spring connecting portions on upper and lower pole and is arranged on applying and forcing lower fulcrum bar to cross around the hinged central axis of folding hinge the tension spring 77 that rotate at dead point to lower fulcrum bar between two extension spring connecting portions.Because apply to lower fulcrum bar the active force that keeps current state (crossing the state behind dead point) behind the dead point that tension spring 77 forms at the hinged central axis through two extension spring connecting portions and folding hinge, so will use the device of this extension spring to be defined as dead point holding device.
Jointed shaft 71 is herein for to be located in the upper bolt on upper rack posts 31, and projection 76 is for being located in the lower bolt of lower fulcrum bar 32.The end that passes two poles of upper and lower bolt forms the described two extension spring connecting portions that descended dead point holding device.
When opening, reclaiming in the process of support 3, lower fulcrum bar 32 is around hinged central axis normal rotation between support level and folding position of folding hinge 10, be accompanied by holding plate 72 around the rotation of jointed shaft 71, projection 76 will slide in the straight hole section 75 of the slotted hole at holding plate 72, guarantees normally opening and regaining of lower fulcrum bar 32.
When support 3 is opened with Support bracket, lower fulcrum bar 32 turns to support level, now holding plate 72 is positioned at support holding position, now, under the effect of torsion spring 78, holding plate 72 rotates the central axis around jointed shaft 71, make projection 76 from straight hole section 75 enter arcuate socket section 73 and towards described arcuate socket section 73 away from straight hole section one Slideslip, and then in the footpath of jointed shaft 71, upwards to projection 76, carry out spacing by holding plate, thereby by projection 76, holding plate 72 and jointed shaft 71 jointed shaft 71 footpaths upwards realize on, lower fulcrum bar spacing, make lower fulcrum bar 32 can effectively remain on support level, prevent lower fulcrum bar misoperation and cause lower fulcrum bar to depart from support level.
When needs are regained support 3, lower fulcrum bar 32 is turned to folding position, now, holding plate 72 is positioned at folding holding position, make projection 76 enter and upwards to projection, carry out spacing arcuate socket section 74 and then in jointed shaft 71 footpaths from straight hole section 75, thereby by projection 76, holding plate 72 and jointed shaft 71, in jointed shaft 71 footpaths, upwards realize spacing to upper and lower pole, and then make lower fulcrum bar effectively to remain on folding position, prevent lower fulcrum bar misoperation and cause lower fulcrum bar to depart from folding position.
When needs make lower fulcrum bar 32 be rotated to folding position by support level or rotate from folding position to support level, need manually to promote the pushed section 74 on holding plate 72, holding plate 72 is rotated around jointed shaft 71, make projection 76 from arcuate socket section 73, skid off and enter in straight hole section 75, then just can make lower fulcrum bar 32 around folding hinge 10 normal rotation.
Meanwhile, because disposed dead point holding device, also can strengthen the stability of lower fulcrum bar.
In addition, in the present embodiment, between underframe 1 and support 3, be provided with and cross dead point holding device, the upper dead point holding device of crossing comprises that correspondence is arranged on two extension spring connecting portions on underframe 1 and support 3 and is arranged on applying and forcing support to cross around the hinged central axis of support and described underframe hinged place the upper extension spring 4 that rotate at dead point to support between two extension spring connecting portions respectively.
In above-described embodiment, upper frame is located on underframe, by linkage in other embodiments, upper frame also can directly be installed on underframe, now, can save upper frame connecting rod, and upper rack posts only need to connect with underframe by underframe connecting rod and can meet the stretching out of bracket, hiding requirement.
In above-described embodiment, middle link adopts L-type connection-rod, and in other embodiments, middle link also can adopt connecting lever of the prior art.
In above-described embodiment, upper frame connecting rod is all vertical with upper rack posts with underframe connecting rod, in other embodiments, also can make top, underframe connecting rod and upper rack posts tilt to intersect.
In above-described embodiment, upper rack posts and lower fulcrum bar are hinged by folding hinge, and in other embodiments, if bracket height is not very high, or cabinet is very dark, also can adopt single pole.

Claims (10)

1. a concealed support, comprise for stretching out to realize bracket with the guide rail slidable fit being installed on cabinet, hiding underframe, on underframe, be hinged with for regaining when bracket is hidden, the support opening when bracket stretches out, support comprises along linearly extended pole, it is characterized in that: described support also comprises that one end and pole are wholely set or are connected, the other end hinged underframe connecting rod corresponding to underframe, the hinged central axis arranged off-centre of the hinged place that pole is hinged with corresponding and underframe on described underframe connecting rod, described underframe, underframe connecting rod and pole are configured for pole being recycled to can being made the linkage of the bearing of trend of pole and the parallel position of the glide direction of described underframe when reclaiming support.
2. concealed support according to claim 1, it is characterized in that: on described underframe, pass through described support, middle link supports and is provided with upper frame, upper frame, support, the corresponding hinged formation linkage of middle link and underframe, described upper frame, on underframe, walk abreast and arrange with the hinged central axis of middle link and the corresponding hinged hinged place of support respectively, described support also comprises that one end and pole are wholely set or are connected, the other end hinged upper frame connecting rod corresponding to upper frame, described upper frame connecting rod and described underframe connecting rod are parallel to be arranged, the length of upper frame connecting rod is greater than the length of underframe connecting rod.
3. concealed support according to claim 2, is characterized in that: described upper frame connecting rod and underframe connecting rod be arrange vertical with pole all.
4. according to the concealed support described in claim 1 or 2 or 3, it is characterized in that: described middle link comprises L-type connecting rod, L-type connecting rod has the stock section being hinged with described underframe and the quarter butt section being hinged with described upper frame.
5. according to the concealed support described in claim 1 or 2 or 3, it is characterized in that: described pole is upper rack posts, described support also comprises by folding hinge and the hinged lower fulcrum bar of described upper rack posts, the hinged central axis of described folding hinge is positioned at a side of upper and lower pole, and lower fulcrum bar has with the folding position of the relative parallel fold of upper rack posts and relatively opens the support level with Support bracket with upper rack posts in the central axis rotation process around described folding hinge.
6. concealed support according to claim 5, it is characterized in that: described is upper, between lower fulcrum bar, be provided with for lower fulcrum bar being remained on to the holding device of support level and/or folding position, holding device comprises by the hinged holding plate of one of them pole in jointed shaft and described two poles, the axis of jointed shaft is parallel with the hinged central axis of described folding hinge, on holding plate, offer with described two poles in another pole on the slotted hole that is slidably matched of the projection that convexes with, this slotted hole comprises the straight hole section of radially extending along jointed shaft being interconnected and the arcuate socket section of circumferentially extending along jointed shaft, holding plate makes projection enter described arcuate socket section upwards projection is carried out spacing and then lower fulcrum bar remained on to the support holding position of support level and/or have and make projection enter arcuate socket section upwards projection is carried out spacing and then lower fulcrum bar remained on to the folding holding position of folding position in jointed shaft footpath by straight hole section in jointed shaft footpath by straight hole section when lower fulcrum bar is positioned at folding position having in jointed shaft rotation process when lower fulcrum bar is positioned at support level.
7. concealed support according to claim 6, is characterized in that: described holding device also comprises being sleeved on forces holding plate to rotate so that projection slides to the torsion spring of the active force away from straight hole section one side of described arcuate socket section for applying to holding plate on described jointed shaft.
8. concealed support according to claim 6, it is characterized in that: between described upper and lower pole, be provided with dead point holding device, the lower dead point holding device of crossing comprises that correspondence is arranged on two extension spring connecting portions on upper and lower pole and is arranged on applying and forcing lower fulcrum bar to cross around the hinged central axis of folding hinge the tension spring that rotate at dead point to lower fulcrum bar between two extension spring connecting portions.
9. according to the concealed support described in claim 1 or 2 or 3, it is characterized in that: described underframe is provided with the locking system that stretches out cabinet for preventing bracket misoperation, locking system comprises the locking bar on underframe that is slidedly assemblied in of anticreep, the end of locking bar has the dead bolt for coordinating with described cabinet thrust, underframe is provided with for stretching out underframe at locking bar sliding process for dead bolt, the opening of retraction underframe, between underframe and locking bar, be provided with to locking bar and apply the spring that forces dead bolt to stretch out underframe, on described locking bar, be also integrally formed with or be fixed with for applying to locking bar and overcome acting force of the spring to force dead bolt retraction underframe and then to realize the manual unlocking piece of the active force of release.
10. according to the concealed support described in claim 1 or 2 or 3, it is characterized in that: between described underframe and support, be provided with dead point holding device, the upper dead point holding device of crossing comprises that correspondence is arranged on two extension spring connecting portions on underframe and support and is arranged on applying and forcing the hinged central axis of with the underframe corresponding hinged place of support on described underframe connecting rod to cross the upper extension spring that rotate at dead point to support between two extension spring connecting portions respectively.
CN201310565101.9A 2013-11-13 2013-11-13 A kind of concealed support Active CN103633576B (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104184059A (en) * 2014-09-13 2014-12-03 安徽鑫龙电器股份有限公司 Supporting device for adjustment of circuit breaker push mechanism and using method of supporting device
CN104577842A (en) * 2014-12-30 2015-04-29 山西汾西机电有限公司 Explosion-proof tank core drawing positioning and locking mechanism in underground coal mine
CN104703430A (en) * 2014-06-26 2015-06-10 国家电网公司 Machine cabinet
CN106449210A (en) * 2016-08-12 2017-02-22 淮南万泰电子股份有限公司 Servo electric propulsion device for low voltage feed switch breaker
CN106877182A (en) * 2017-04-17 2017-06-20 河南森源电气股份有限公司 A kind of gas-filling cabinet and its release unit escapement
CN108199270A (en) * 2017-12-26 2018-06-22 北京天诚同创电气有限公司 Pull folding tray device and reactance cabinet
CN108505950A (en) * 2018-04-28 2018-09-07 中冶建工集团有限公司 A kind of horizontal hole construction water drilling mounting bracket
CN110112667A (en) * 2019-06-20 2019-08-09 广东电网有限责任公司 A kind of rotation axis
CN113475345A (en) * 2021-06-23 2021-10-08 徐工集团工程机械股份有限公司科技分公司 Can hide supplementary collection of bracket type material device and collection material machine

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CN2290935Y (en) * 1996-08-12 1998-09-09 沈阳华利能源设备制造有限公司 Draw-out type folding bracket
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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104703430A (en) * 2014-06-26 2015-06-10 国家电网公司 Machine cabinet
CN104184059B (en) * 2014-09-13 2016-09-14 安徽中电兴发与鑫龙科技股份有限公司 A kind of circuit breaker propelling mechanism adjustment support means and using method thereof
CN104184059A (en) * 2014-09-13 2014-12-03 安徽鑫龙电器股份有限公司 Supporting device for adjustment of circuit breaker push mechanism and using method of supporting device
CN104577842A (en) * 2014-12-30 2015-04-29 山西汾西机电有限公司 Explosion-proof tank core drawing positioning and locking mechanism in underground coal mine
CN104577842B (en) * 2014-12-30 2017-01-11 山西汾西机电有限公司 Explosion-proof tank core drawing positioning and locking mechanism in underground coal mine
CN106449210B (en) * 2016-08-12 2018-06-22 淮南万泰电子股份有限公司 A kind of low-voltage feeder switch breaker servo-electric propulsion device
CN106449210A (en) * 2016-08-12 2017-02-22 淮南万泰电子股份有限公司 Servo electric propulsion device for low voltage feed switch breaker
CN106877182A (en) * 2017-04-17 2017-06-20 河南森源电气股份有限公司 A kind of gas-filling cabinet and its release unit escapement
CN106877182B (en) * 2017-04-17 2018-11-23 河南森源电气股份有限公司 A kind of gas-filling cabinet and its release unit escapement
CN108199270A (en) * 2017-12-26 2018-06-22 北京天诚同创电气有限公司 Pull folding tray device and reactance cabinet
CN108505950A (en) * 2018-04-28 2018-09-07 中冶建工集团有限公司 A kind of horizontal hole construction water drilling mounting bracket
CN110112667A (en) * 2019-06-20 2019-08-09 广东电网有限责任公司 A kind of rotation axis
CN113475345A (en) * 2021-06-23 2021-10-08 徐工集团工程机械股份有限公司科技分公司 Can hide supplementary collection of bracket type material device and collection material machine

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