CN106473446A - Crossbeam pop-up folding table - Google Patents

Abstract

A kind of crossbeam pop-up folding table，Including the hinged desktop of two plane tables、Folded table leg、Baffler、Rotate intubation，The chair leg holding tank being adapted with folded table leg is had in plane table bottom surface，The bottom of the plane table is provided with and rotates intubation mounting groove and be provided with installing hole on the end face of chair leg holding tank fluting，The both sides of chair leg holding tank symmetrically have lock hole，In chair leg holding tank, nearly bottom land end position is provided with salient point，The neighboring of baffler is distributed with the mounting post for adapting to cooperation with installing hole，Folded table leg includes articulated column、Table leg overcoat、Table leg inner sleeve with dovetail groove、The rotation elastic rod being rotatably installed in dovetail groove、Installed in the elastic rod spring rotated between elastic rod and dovetail groove，The circular groove that inserts for elastic rod spring is had in dovetail groove，The articulated column is hinged with table leg inner sleeve head,Described table leg inner sleeve is placed in table leg overcoat.The bearing capacity of desktop is greatly improved, folding table is again elegant in appearance in appearance.

Description

Crossbeam pop-up folding table

Technical field

The present invention relates to a kind of folding table.

Background technology

Folding table is a kind of desk with folder function.When need not using folding table, which can be carried out Fold, to reach the purpose for making full use of space.The table leg of folding table on the market is all placed in below desk after typically folding, When multiple folding tables are stacked together, it may appear that the table leg of different folding tables is mutually tangled, extremely inconvenience when deployed； The table leg of folding table is exposed outside on the market, also easily hides certain safety problem, especially youngster smaller to the age Virgin or the elderly, easily falls down them as stop；The table leg of market folding table is usually by spring and shaft portion Composition, use time are slightly long, and spring can fail, and table leg is not easily being fixed, and the table leg of folding table is no longer firm, folding table Service life is shortened；The table leg of market folding table is usually regular length, folding table can be only placed at smooth where, be placed on not When where smooth, the placement of folding table is made troubles to user just not steady, and the range of folding table is reduced； , typically using a table or the table of two clampings or splicing, the free degree of the vertical direction of folding table is only for folding table on the market One is limited, also one direction is unstable, and the connecting portion of table is pressurized excessive, it is easy to rupture.

Content of the invention

For above-mentioned technical problem, the present invention provides a kind of folding table with support beam, and its stability is high, pressure-bearing energy Power is big.

For solving above-mentioned technical problem, the present invention is employed the following technical solutions：A kind of crossbeam pop-up folding table, including two The hinged desktop of individual plane table, four folded table legs of two plane table bottoms are respectively arranged at, described plane Automatic support beam mechanism is additionally provided with table, and described automatic support beam mechanism includes that side has the support beam of jack And automatic ejecting mechanism, the switch groove having crossbeam groove and connect with crossbeam groove on the hinged end face of described plane table, Described support beam is placed in crossbeam groove and along crossbeam groove slidably, and described automatic ejecting mechanism is placed in switch groove, Described automatic ejecting mechanism includes housing, sliding panel, two baffle plates, two short springs, with fluted and switchboard boss Switchboard, two hook plates being oppositely arranged, elastic threads, the cover plate with through hole, the switch connecting rods with concave station；Described housing On have on baffle plate groove, slide rail, square opening, the sliding tray Wei Yu square opening and slide rail between and slide rail same plane two Dovetail groove, the baffle holes being located in baffle plate groove, connecting hole, dovetail groove top and baffle plate groove bottom overlap and are communicated in sliding tray, The sliding panel is installed in the sliding tray of housing, and described sliding panel side afterbody is raised connecting rod, and raised connecting rod is through housing Square opening be inserted in support beam jack, the opposite side afterbody of sliding panel is convex with raised platforms and center indent Platform；Two baffle plates are plugged in the baffle plate groove of housing respectively so that the protruding column set by two baffle plate two ends inserts gear respectively Spacing in plate hole, two short springs are connected between baffle plate and baffle plate groove respectively, and baffle bottom is across slide rail and sliding tray；Described Switchboard be installed on housing slide rail, described switchboard both sides are provided with triangular hill, and two triangle projections are respectively mounted In corresponding dovetail groove and the raised Central Symmetry with regard to switchboard of two triangles, the switchboard boss insertion cover plate logical In the hole；Connected by elastic threads between two described hook plates and be installed in the groove of switchboard, described hook plate is held in opposite directions With the locking projections that the boss with the raised platforms and center indent of switchboard coordinates；Described side edge thereof is distributed with four The connection inserting column that the individual connecting hole with surface of shell coordinates, has square through hole on the cover plate, the concave station for switching connecting rod is saturating Cross square through hole to be connected with the switchboard boss of switchboard side, switch connecting rod place side is located on the plane table and is had The intercommunicating pore corresponding with cover plate through hole.

As a kind of improvement：Also include baffler, intubation is rotated, have in plane table bottom surface and be adapted with folded table leg Chair leg holding tank, the bottom of the plane table is provided with and rotates intubation mounting groove and on the end face of chair leg holding tank fluting Installing hole is provided with, the both sides of leg holding tank symmetrically have lock hole, nearly bottom land end position is provided with chair leg holding tank Salient point, the neighboring of described baffler are distributed with and adapt to, with installing hole, the mounting post that coordinates, folded table leg include articulated column, Table leg overcoat, with the table leg inner sleeve of dovetail groove, the rotation elastic rod being rotatably installed in dovetail groove, installed in rotating elastic rod Elastic rod spring between dovetail groove, has the circular groove that inserts for elastic rod spring, the articulated column and table in described dovetail groove Leg inner sleeve head is hinged, and described table leg inner sleeve is placed in table leg overcoat；The inside of described articulated column is hollow structure, in hinge Connect post and be connected on end the circular hole having along the extension of articulated column length direction with table leg overcoat, the inner face that circular hole is located is along hinged Column length direction has fore-set sliding tray, and the outer surface of articulated column has through hole, and the through hole is connected with inner hollow, fore-set Sliding tray has the rotating hole perpendicular with through hole on the whole；Automatic locking machine is provided with described fore-set sliding tray Structure, the automatic locking mechanism include that bottom has the slip fore-set of spring mounting hole, the fore-set being installed in spring mounting hole Spring, two be respectively arranged in through in the hole and the clamping block with roller, be respectively arranged in clamping block and articulated column inner surface Between retracting spring, locked flapper, be fixedly mounted on the torsion spring of locked flapper and articulated column inner surface, the slip fore-set bag The sliding shoe for including bottom, the push rod being arranged on sliding shoe, the projection on top, the projection are installed in circular hole, the slip Block is installed in fore-set sliding tray, and the fore-set spring being installed in spring mounting hole also is located in sliding tray；The locked flapper Upper and lower ends are column spinner and are installed on rotation in the hole that the middle part of locked flapper is the symmetrical cam of profile and and clamping block On roller cooperate, locked flapper is provided with the linked-baffle matched with push rod.

As a kind of improvement：Also include baffler, intubation is rotated, have in plane table bottom surface and be adapted with folded table leg Chair leg holding tank, the bottom of the plane table is provided with and rotates intubation mounting groove and on the end face of chair leg holding tank fluting Installing hole is provided with, the both sides of leg holding tank symmetrically have lock hole, nearly bottom land end position is provided with chair leg holding tank Salient point, the neighboring of described baffler are distributed with and adapt to, with installing hole, the mounting post that coordinates, folded table leg include articulated column, Table leg overcoat, with the table leg inner sleeve of dovetail groove, the rotation elastic rod being rotatably installed in dovetail groove, installed in rotating elastic rod Elastic rod spring between dovetail groove, has the circular groove that inserts for elastic rod spring, the articulated column and table in described dovetail groove Leg inner sleeve head is hinged, and described table leg inner sleeve is placed in table leg overcoat；Automatic locking mechanism is carried inside the articulated column, Fore-set slip deep trouth is had on described articulated column and desktop connecting end surface, on articulated column surface on desktop connection end position The symmetrical shrinkage pool seamlessly transitted with surface is provided with, is connected on end with table leg overcoat in articulated column and has along articulated column length direction The circular hole of the extension and circular hole is connected with fore-set slip deep trouth, the outer surface of articulated column has through hole, the through hole and fore-set Slip deep trouth is connected, and described automatic locking mechanism is arranged in fore-set slip deep trouth, and the automatic locking mechanism includes triangle Fore-set, two slide blocks with inclined-plane, carry with fore-set slip deep trouth be adapted cooperation seal boss base plate, through gable-top Post simultaneously connects the elastic threads of two slide blocks, the spring being placed between triangle fore-set and base plate, and the triangle fore-set includes bottom Isosceles trapezoid platform, the projection on top, the top surface of the projection is arc surface, and described projection is installed in the circular hole of articulated column； Two described slide blocks are respectively arranged in through in the hole, and the inclined-plane of the slide block is pasted with the isosceles trapezoid platform side central plane of triangle fore-set Close.

The invention has the beneficial effects as follows：The built-in automatic support beam mechanism of table, when folding table launches after, promotes table The switch of side, the built-in automatic support beam mechanism of table just eject support beam, and support beam is across two pieces of tables, table Intensity increases between table, greatly improves the bearing capacity of desktop, and folding table is more steady, and support beam mechanism band automatically There is self-locking, support beam will not be moved easily, the switch of table side when folding table is packed up, is reversely promoted, support beam is just It is incorporated in the crossbeam groove of table, while support beam is hidden, folding table is again elegant in appearance in appearance.

In order that the purpose of invention, technical scheme and advantage are clearer, the present invention is made into one below in conjunction with accompanying drawing The detailed description of step.

Description of the drawings

Fig. 1 is structural representation when crossbeam pop-up folding table is folded.

Fig. 2 is structural representation when crossbeam pop-up folding table opens.

Fig. 3 is the structural representation of automatic support beam mechanism.

Fig. 4 is a kind of structural representation of embodiment of articulated column.

Fig. 5 is the structural representation of articulated column another kind embodiment.

Specific embodiment

As shown in Figure 1, Figure 2, Figure 3 shows, a kind of crossbeam pop-up folding table, including the hinged table of two plane tables 1 Face 1d, four folded table legs 2 for being respectively arranged at two plane table bottoms, baffler 3, rotate intubation 6, described plane table Automatic support beam mechanism 4 is additionally provided with plate 1, and described automatic support beam mechanism 4 includes that side has propping up for jack 4a.1 Support crossbeam 4a and automatic ejecting mechanism 4b, have on the hinged end face of described plane table 1 crossbeam groove 4c and with crossbeam groove The switch groove 4d of 4c connection, described support beam 4a be placed in crossbeam groove 4c and along crossbeam groove 4c slidably, described from Dynamic ejecting mechanism 4b is placed in switch groove 4d, and described automatic ejecting mechanism 4b includes housing 4b.1, sliding panel 4b.2, two gears Plate 4b.3, two short spring 4b.4, the switchboard 4b.5 with fluted 4b.51 and switchboard boss 4b.52, two be oppositely arranged Hook plate 4b.6, elastic threads 4b.7, with through hole 4b.81 cover plate 4b.8, with concave station 4b.91 switch connecting rod 4b.9；Institute Baffle plate groove 4b.12, slide rail 4b.13, square opening 4b.14 is had on the housing 4b.1 for stating, be located at square opening 4b.14 and slide rail Two dovetail groove 4b.15 on sliding tray 4b.11 between 4b.13 and slide rail 4b.13 same plane, it is located at baffle plate groove 4b.12 Interior baffle holes 4b.16, connecting hole 4b.17, dovetail groove 4b.15 top and baffle plate groove 4b.12 bottom overlap and are communicated in slip Groove 4b.11, the sliding panel 4b.2 are installed in the sliding tray 4b.11 of housing 4b.1, described sliding panel 4b.2 side afterbody It is inserted in support beam 4a jack 4a.1 for the square opening 4b.14 of raised connecting rod 4b.21, raised connecting rod 4b.21 through housing, sliding Boss 4b.23 of the opposite side afterbody of dynamic plate 4b.2 with raised platforms 4b.22 and center indent；Two baffle plate 4b.3 difference It is plugged in the baffle plate groove 4b.12 of housing 4b.1 so that the protruding column set by two baffle plate two ends inserts baffle plate in the hole respectively Spacing, two short spring 4b.4 are connected between baffle plate and baffle plate groove respectively, across the slide rail 4b.13 of baffle plate 4b.3 bottom transverse and slip Groove 4b.11；Described switchboard 4b.5 is installed on housing 4b.1 slide rail 4b.13, and described switchboard 4b.5 both sides are provided with three Angular projection 4b.53, two triangle projection 4b.53 are respectively arranged in corresponding dovetail groove 4b.15 and two triangle projections 4b.53 is inserted in the through hole 4b.81 of cover plate 4b.8 with regard to the Central Symmetry of switchboard, the switchboard boss 4b.52；Described Connected by elastic threads 4b.7 between two hook plate 4b.6 and be installed in the groove 4b.51 of switchboard 4b.5, described hook plate The 4b.6 lock tab that end coordinates with the boss 4b.23 with raised platforms 4b.22 and center indent of switchboard 4b.5 in opposite directions Play 4b.61；Described cover plate 4b.8 edge distribution has four connection inserting columns coordinated with the connecting hole 4b.17 on housing 4b.1 surface 4b.81, has square through hole 4b.82 on the cover plate, the concave station 4b.91 for switching connecting rod 4b.9 passes through square through hole 4b.82 is connected with the switchboard boss 4b.52 of switchboard 4b.5 side, is located at switch connecting rod 4b.9 institute on the plane table 1 The intercommunicating pore 7 corresponding with cover plate through hole 4b.81 is had in side.

When using, switch connecting rod 4b.9 is stirred to side, and switch connecting rod 4b.9 drives switchboard 4b.5 along slide rail 4b.13 is moved forward, and the stretching of elastic threads 4b.7 between the hook plate 4b.6 at switchboard 4b.5 two ends stores power, on switchboard 4b.5 after , by the baffle plate 4b.3 jack-up at rear portion, the latch-release of sliding panel 4b.2, by bottom hook plate 4b.6 bullet for the triangle projection 4b.53 in portion Go out, related support beam 4a of sliding panel 4b.2 is ejected, sliding panel 4b.2 is hindered by the hook plate 4b.6 of opposite side after skidding off certain distance Gear, anterior baffle plate 4b.3 prop up the bottom of sliding panel 4b.2, locking.

When switch connecting rod 4b.9 is allocated to opposite side, switch connecting rod 4b.9 drives switchboard 4b.5 to be moved rearwards by, switchboard Elastic threads stretching 4b.7 between the hook plate 4b.6 at 4b.5 two ends stores power, and the triangle projection 4b.53 of switchboard 4b.5 upper forepart will Anterior baffle plate 4b.3 jack-up, the latch-release of sliding panel 4b.2, sliding tray is snapped into by anterior hook plate 4b.6, sliding panel 4b.2 connects Band support beam 4a slides to opposite side, and support beam is just incorporated in the crossbeam groove of table, and sliding panel 4b.2 skids off certain distance Stopped by the hook plate 4b.6 of bottom afterwards, bottom baffle 4b.3 is propped up at waist " T " word of sliding panel 4b.2, locking.

For enabling table leg to consolidate supporting desktop, in the table leg of described folding table, automatic locking mechanism is also provided with, its Concrete scheme can be using hinged post design as shown in Figure 4 or hinged post design as shown in Figure 5.

As shown in figure 4, having the chair leg holding tank 1a being adapted with folded table leg, the plane in 1 bottom surface of plane table The bottom of table 1 is provided with and rotates intubation mounting groove 1e and be provided with installing hole 1c, institute on the end face of chair leg holding tank 1a fluting The both sides for stating chair leg holding tank 1a symmetrically have lock hole 1b, and in chair leg holding tank 1a, nearly bottom land end position is provided with salient point 1f, The neighboring of described baffler 3 is distributed with mounting post 3a for adapting to cooperation with installing hole 1c, and folded table leg 2 includes articulated column 2a, table leg overcoat 2b, table leg inner sleeve 2c with dovetail groove 2c.1, the rotation elastic rod being rotatably installed in dovetail groove 2c.1 2d, the elastic rod spring 2e between rotation elastic rod 2d and dovetail groove 2c.1, have in described dovetail groove 2c.1 and supply elastic rod The circular groove 2c.2 that spring 2e is inserted, the articulated column 2a are hinged with table leg inner sleeve 2c head, and described table leg inner sleeve 2c is placed on table In leg overcoat 2b；The inside of described articulated column 2a is hollow structure, is connected on end with table leg overcoat 2b in articulated column 2a and opens The inner face being located along circular hole 2a.2, the circular hole 2a.2 that articulated column 2a length direction extends is had to have along articulated column 2a length direction The outer surface of fore-set sliding tray 2a.1, articulated column 2a has through hole 2a.3, and through hole 2a.3 is connected with inner hollow, fore-set Sliding tray 2a.1 has the rotating hole 2a.4 perpendicular with through hole on the whole；It is provided with described fore-set sliding tray 2a.1 Automatic locking mechanism, the automatic locking mechanism 5 include that bottom has the slip fore-set 5a.1 of spring mounting hole 5a.11, installation It is respectively arranged in through hole 2a.3 and with roller 5a.3's in the fore-set spring 5a.2 in spring mounting hole 5a.11, two Clamping block 5a.2, the retracting spring 5a.4 being respectively arranged between clamping block 5a.3 and articulated column 2a inner surface, locked flapper 5a.5, the torsion spring 5a.6 of locked flapper 5a.5 and articulated column 2a inner surface is fixedly mounted on, under the slip fore-set 5a.1 includes The sliding shoe 5a.12 in portion, push rod 5a.13, the projection 5a.14 on top on sliding shoe 5a.12, the projection 5a.14 It is installed in circular hole 2a.2, the sliding shoe 5a.12 is installed in fore-set sliding tray 2a.1, is installed on spring mounting hole 5a.11 Interior fore-set spring 5a.2 also is located in sliding tray 2a.1；The locked flapper 5a.5 upper and lower ends be column spinner 5a.51 and Be installed in rotating hole 2a.4, the middle part of locked flapper 5a.5 be the symmetrical cam 5a.52 of profile and with clamping block 5a.2 on Roller 5a.3 cooperate, locked flapper 5a.5 is provided with the linked-baffle 5a.53 matched with push rod 5a.13.Employ Nested structure and automatic locking mechanism inside and outside table leg, the stretched expansion of table leg, rotate elastic rod and be ejected, and insert table bottom In built-in rotation intubation so that table leg is inwardly limited, while realizing table leg in all directions by automatic locking mechanism Limitation locking, folded table leg is fixed under table and locks, it is to avoid it is steady that table leg opens excessively outwards sliding phenomenon, table leg Clamped support.When folding table is not used and is stowed away, after folding, the sliding shoe in articulated column shrinks folded table leg, fixed solution Remove, folding retractable table leg can be pushed in the holding tank of table, and folding table becomes one flat plate, eliminate potential safety hazard；When many When the individual folding table that packs up is stacked on together, also it is less likely to occur to fall, the table leg of folding table will not mutual tied up in knots； When folding retractable table leg is used, folding retractable table leg is pulled out from chair leg standing groove, and the locked flapper in articulated column is in torsion spring In the presence of rotate, clamping block along cam rotation stretch out insert holding tank in locking in the hole.As articulated column is using machinery Structure latches, low cost, be easily achieved, fault rate is low, the service life of table leg and folding table is greatly prolonged, and table leg can quilt Chair leg standing groove is taken in, is realized hiding, volume is reduced, be easy to storage.

As shown in figure 5, having the chair leg holding tank 1a being adapted with folded table leg, the plane in 1 bottom surface of plane table The bottom of table 1 is provided with and rotates intubation mounting groove 1e and be provided with installing hole 1c, institute on the end face of chair leg holding tank 1a fluting The both sides for stating chair leg holding tank 1a symmetrically have lock hole 1b, and in chair leg holding tank 1a, nearly bottom land end position is provided with salient point 1f, The neighboring of described baffler 3 is distributed with mounting post 3a for adapting to cooperation with installing hole 1c, and folded table leg 2 includes articulated column 2a, table leg overcoat 2b, table leg inner sleeve 2c with dovetail groove 2c.1, the rotation elastic rod being rotatably installed in dovetail groove 2c.1 2d, the elastic rod spring 2e between rotation elastic rod 2d and dovetail groove 2c.1, have in described dovetail groove 2c.1 and supply elastic rod The circular groove 2c.2 that spring 2e is inserted, the articulated column 2a are hinged with table leg inner sleeve 2c head, and described table leg inner sleeve 2c is placed on table In leg overcoat 2b；Automatic locking mechanism is carried inside the articulated column 2a, in described articulated column 2a and desktop 1d connecting end surface On have a fore-set slip deep trouth 2a.1, be provided with desktop connection end position on articulated column 2a surface and seamlessly transit with surface Symmetrical shrinkage pool 2a.4, is connected on end with table leg overcoat 2b in articulated column and has the circular hole 2a.2 extended along articulated column length direction And circular hole 2a.2 is connected with fore-set slip deep trouth 2a.1, the outer surface of articulated column has through hole 2a.3, through hole 2a.3 Connect with fore-set slip deep trouth 2a.1, described automatic locking mechanism is arranged in fore-set slip deep trouth 2a.1, the automatic lock Determine mechanism 5 include triangle fore-set 5a, two slide block 5b with inclined-plane 5b.1, with and fore-set slip deep trouth 2a.1 be adapted and coordinate Seal boss 5d.1 base plate 5d, through triangle fore-set and connect two slide blocks elastic threads 5e, be placed in triangle fore-set 5a with Spring 5c between base plate 5d, the triangle fore-set 5a include the isosceles trapezoid platform 5a.1 of bottom, the projection 5a.2 on top, described The top surface of projection 5a.2 is arc surface, and described projection 5a.2 is installed in the circular hole 2a.2 of articulated column；Two described slide blocks divide It is not installed in through hole 2a.3, the isosceles trapezoid platform 5a.1 side central plane patch of the inclined-plane 5b.1 of the slide block 5b and triangle fore-set 5a Close.Nested structure and automatic locking mechanism inside and outside table leg is employed, the stretched expansion of table leg, rotation elastic rod are ejected, and insert In the built-in rotation intubation of table bottom so that table leg is inwardly limited, while realize table leg by automatic locking mechanism existing Limitation locking in all directions, folded table leg be fixed under table and lock, it is to avoid table leg is opened excessively outwards sliding Phenomenon, table leg are firm to be supported.When folding table is not used and is stowed away, sliding shoe of the folded table leg after folding, in articulated column Shrink, fixing releasing, folding retractable table leg can be pushed in the holding tank of table, and folding table becomes one flat plate, eliminates peace Full hidden danger；When multiple folding tables that packs up are stacked on together, also it is less likely to occur to fall, the table leg of folding table will not be mutual Tied up in knots；When folding retractable table leg is used, folding retractable table leg is pulled out from chair leg standing groove, the locking in articulated column Baffle plate is rotated in the presence of torsion spring, and clamping block stretches out the locking in the hole in insertion holding tank along the rotation of cam.Due to hinged Post is locked using frame for movement, low cost, be easily achieved, fault rate is low, the service life of table leg and folding table is greatly prolonged, And table leg can be incorporated into chair leg standing groove, realize hiding, volume is reduced, be easy to storage.

Claims (3)

1. a kind of crossbeam pop-up folding table, it is characterised in that：Including the hinged desktop (1d) of two plane tables (1), Four folded table legs (2) of two plane table bottoms are respectively arranged at, on described plane table (1), are additionally provided with support automatically Beam mechanism (4), described automatic support beam mechanism (4) including side have jack (4a.1) support beam (4a) and from Dynamic ejecting mechanism (4b), has crossbeam groove (4c) and with crossbeam groove (4c) even on the hinged end face of described plane table (1) Logical switch groove (4d), described support beam (4a) are placed in crossbeam groove (4c) and along crossbeam groove (4c) slidably, described Automatic ejecting mechanism (4b) be placed in switch groove (4d), described automatic ejecting mechanism (4b) includes housing (4b.1), slides Plate (4b.2), two baffle plates (4b.3), two short spring (4b.4), with fluted (4b.51) and switchboard boss (4b.52) Switchboard (4b.5), two hook plates being oppositely arranged (4b.6), elastic threads (4b.7), the cover plates with through hole (4b.81) (4b.8), the switch connecting rod (4b.9) with concave station (4b.91)；Baffle plate groove (4b.12) is had on described housing (4b.1), slided Rail (4b.13), square opening (4b.14), the sliding tray (4b.11) Wei Yu square opening (4b.14) and slide rail (4b.13) between and Two dovetail grooves (4b.15) on slide rail (4b.13) same plane, the baffle holes (4b.16) being located in baffle plate groove (4b.12), Connecting hole (4b.17), dovetail groove (4b.15) top and baffle plate groove (4b.12) bottom overlap and are communicated in sliding tray (4b.11), Sliding panel (4b.2) is installed in the sliding tray (4b.11) of housing (4b.1), described sliding panel (4b.2) side afterbody For raised connecting rod (4b.21), the square opening (4b.14) of raised connecting rod (4b.21) through housing is inserted in support beam (4a) jack (4a.1), in, the opposite side afterbody of sliding panel (4b.2) carries the boss of raised platforms (4b.22) and center indent (4b.23)；Two baffle plates (4b.3) are plugged in the baffle plate groove (4b.12) of housing (4b.1) respectively so that two baffle plate two ends It is spacing that set protruding column inserts baffle plate in the hole respectively, two short spring (4b.4) be connected to respectively baffle plate and baffle plate groove it Between, baffle plate (4b.3) bottom transverse is across slide rail (4b.13) and sliding tray (4b.11)；Described switchboard (4b.5) is installed on housing (4b.1), on slide rail (4b.13), described switchboard (4b.5) both sides are provided with triangular hill (4b.53), two triangle projections (4b.53) center pair of the interior and two triangle projections (4b.53) of corresponding dovetail groove (4b.15) with regard to switchboard is respectively arranged in Claim, in the through hole (4b.81) of described switchboard boss (4b.52) insertion cover plate (4b.8)；Two described hook plates (4b.6) it Between connected and be installed in the groove (4b.51) of switchboard (4b.5) by elastic threads (4b.7), described hook plate (4b.6) phase To end with the lock tab coordinated with the raised platforms (4b.22) of switchboard (4b.5) and the boss (4b.23) of center indent Rise (4b.61)；Described cover plate (4b.8) edge distribution has four to coordinate with the connecting hole (4b.17) on housing (4b.1) surface Connection inserting column (4b.81), has square through hole (4b.82) on the cover plate, switch the concave station (4b.91) of connecting rod (4b.9) thoroughly Cross square through hole (4b.82) to be connected with the switchboard boss (4b.52) of switchboard (4b.5) side, plane table (1) On positioned at switch connecting rod (4b.9) place side have the intercommunicating pore (7) corresponding with cover plate through hole (4b.81).

2. crossbeam pop-up folding table according to claim 1, it is characterised in that：Also include baffler (3), rotate intubation (6) the chair leg holding tank (1a) being adapted with folded table leg, the bottom of plane table (1), are had in plane table (1) bottom surface Portion is provided with rotation intubation mounting groove (1e) and is provided with installing hole (1c), the chair on the end face that chair leg holding tank (1a) is slotted The both sides of leg holding tank (1a) symmetrically have lock hole (1b), and in chair leg holding tank (1a), nearly bottom land end position is provided with salient point (1f), the neighboring of described baffler (3) is distributed with the mounting post (3a) for adapting to cooperation with installing hole (1c), folded table leg (2) include articulated column (2a), table leg overcoat (2b), the table leg inner sleeve (2c) with dovetail groove (2c.1), be rotatably installed on Rotation elastic rod (2d) in dovetail groove (2c.1), the elastic rod spring between rotation elastic rod (2d) and dovetail groove (2c.1) (2e), have the circular groove (2c.2) that inserts for elastic rod spring (2e) in described dovetail groove (2c.1), articulated column (2a) with Table leg inner sleeve (2c) head is hinged, and described table leg inner sleeve (2c) is placed in table leg overcoat (2b)；Described articulated column (2a) Internal is hollow structure, is connected on end to have in articulated column (2a) and table leg overcoat (2b) and prolongs along articulated column (2a) length direction The circular hole (2a.2) that stretches, the inner face that circular hole (2a.2) is located have fore-set sliding tray along articulated column (2a) length direction (2a.1), the outer surface of articulated column (2a) has through hole (2a.3), and the through hole (2a.3) is connected with inner hollow, and fore-set is slided Dynamic groove (2a.1) has the rotating hole (2a.4) perpendicular with through hole on the whole；Set in described fore-set sliding tray (2a.1) Automatic locking mechanism is equipped with, automatic locking mechanism (5) have the slip fore-set of spring mounting hole (5a.11) including bottom (5a.1) the fore-set spring (5a.2) that, is installed in spring mounting hole (5a.11), two be respectively arranged in through hole (2a.3) And carry the clamping block (5a.2) of roller (5a.3), be respectively arranged between clamping block (5a.3) and articulated column (2a) inner surface Retracting spring (5a.4), locked flapper (5a.5), it is fixedly mounted on the torsion of locked flapper (5a.5) and articulated column (2a) inner surface Spring (5a.6), described slip fore-set (5a.1) include the sliding shoe (5a.12) of bottom, the top on sliding shoe (5a.12) Bar (5a.13), the projection (5a.14) on top, projection (5a.14) are installed in circular hole (2a.2), the sliding shoe (5a.12) it is installed in fore-set sliding tray (2a.1), is installed on fore-set spring (5a.2) in spring mounting hole (5a.11) also position In sliding tray (2a.1)；Locked flapper (5a.5) upper and lower ends are column spinner (5a.51) and are installed on rotating hole (2a.4) in, the middle part of locked flapper (5a.5) be the symmetrical cam (5a.52) of profile and with clamping block (5a.2) on rolling Wheel (5a.3) cooperates, and locked flapper (5a.5) is provided with the linked-baffle (5a.53) matched with push rod (5a.13).

3. crossbeam pop-up folding table according to claim 1, it is characterised in that：Also include baffler (3), rotate intubation (6) the chair leg holding tank (1a) being adapted with folded table leg, the bottom of plane table (1), are had in plane table (1) bottom surface Portion is provided with rotation intubation mounting groove (1e) and is provided with installing hole (1c), the chair on the end face that chair leg holding tank (1a) is slotted The both sides of leg holding tank (1a) symmetrically have lock hole (1b), and in chair leg holding tank (1a), nearly bottom land end position is provided with salient point (1f), the neighboring of described baffler (3) is distributed with the mounting post (3a) for adapting to cooperation with installing hole (1c), folded table leg (2) include articulated column (2a), table leg overcoat (2b), the table leg inner sleeve (2c) with dovetail groove (2c.1), be rotatably installed on Rotation elastic rod (2d) in dovetail groove (2c.1), the elastic rod spring between rotation elastic rod (2d) and dovetail groove (2c.1) (2e), have the circular groove (2c.2) that inserts for elastic rod spring (2e) in described dovetail groove (2c.1), articulated column (2a) with Table leg inner sleeve (2c) head is hinged, and described table leg inner sleeve (2c) is placed in table leg overcoat (2b)；Described articulated column (2a) is internal With automatic locking mechanism, on described articulated column (2a) with desktop (1d) connecting end surface, have fore-set slip deep trouth (2a.1), the symmetrical shrinkage pool seamlessly transitted with surface is provided with desktop connection end position on articulated column (2a) surface (2a.4), articulated column and table leg overcoat (2b) be connected on end have along articulated column length direction extend circular hole (2a.2) and The circular hole (2a.2) is connected with fore-set slip deep trouth (2a.1), and the outer surface of articulated column has through hole (2a.3), the through hole (2a.3) connect with fore-set slip deep trouth (2a.1), described automatic locking mechanism is arranged in fore-set slip deep trouth (2a.1), Described automatic locking mechanism (5) include triangle fore-set (5a), two slide blocks with inclined-plane (5b.1) (5b), with and fore-set slip Deep trouth (2a.1) is adapted the base plate (5d) of the seal boss (5d.1) for coordinating, passes through triangle fore-set and connects the elasticity of two slide blocks Rope (5e), the spring (5c) being placed between triangle fore-set (5a) and base plate (5d), described triangle fore-set (5a) includes bottom Isosceles trapezoid platform (5a.1), the projection (5a.2) on top, the top surface of projection (5a.2) are arc surface, described projection (5a.2) it is installed in the circular hole (2a.2) of articulated column；Two described slide blocks are respectively arranged in through hole (2a.3), the cunning The inclined-plane (5b.1) of block (5b) is fitted with isosceles trapezoid platform (5a.1) the side central plane of triangle fore-set (5a).