CN1187011C - Multipurpose synchronous foldable exhibition shelf - Google Patents

Abstract

The present invention relates to a multipurpose synchronous foldable shelf which comprises at least three supporting legs, wherein the upper ends of each two adjacent supporting legs are connected by a rail connecting device, an axial running supporting shelf which can slide up and down along the supporting leg and an unfolding lock which can limit the axial running supporting shelf are sheathed on each supporting leg, and a sway rod is connected between each axial running supporting shelf and each rail connecting device which are connected with the same supporting leg. The multipurpose synchronous foldable shelf is also provided with an upper central hinge and a lower central hinge, wherein the upper central hinge, the lower central hinge and each supporting leg are connected by crossing rod connecting mechanisms, each crossing rod connecting mechanism comprises at least two connecting rods, the connecting rods are divided into two groups, the middle parts of which are hinged, both ends of one group of connecting rods are respectively hinged with the upper central hinge and the axial running supporting shelves, and both ends of the other group of connecting rods are respectively hinged with the lower central hinge and the upper end heads of the supporting legs. The present invention can be used as a table shelf of an integral foldable umbrella matched with a large umbrella, a booth shelf, a table shelf, a flowing stage, a tent, etc.

Description

Multipurpose is opened up the folding frame synchronously

Technical field

The present invention relates to a kind of can be used as and open up the folding frame synchronously with the multipurpose of aspects such as the supporting integral body of large umbrella exhibition packing table frame, stand shelf, table frame, mobile stage and tent, this exhibition folding frame can make by its constitute the object of skeleton structure folding easily and correctly with expansion.

Background technology

Generally use the exhibition folding frame and the another kind of exhibition folding frame of forming cross top by the herringbone bar on the cross top of a kind of tool crossbar at present both at home and abroad, the former is as disclosed in the Chinese patent application 99814254.9 " the tent frame of collapsible shelter ", crossbar one end on its formation tent top is hinged on the central power rod, and the other end is hinged on the articulated section of the connecting rod centre that is connected between the two adjacent suspension columns, its defective is that the weight on tent top is through acting on earlier after the crossbar transmission on the connecting rod between the two adjacent suspension columns, be passed to suspension column via connecting rod again, the power that the connecting rod middle part is born is very big, thereby cause the intensity of whole tent frame and steadiness all poor, and because of the form that also adopts crossbar between its adjacent suspension column connects, make it not possess a possible more complete supporting plane, thereby its possible range of application is narrow, is only applicable to the tent frame substantially; Disclosed in the latter such as the Chinese patent 98214317.6 " the whole folding of exhibition synchronously frame ", it constitutes the upper frame structure by the herringbone bar, the herringbone bar constitutes by push rod with to the passive jacking bar of push rod, its defective is that the weight at top mainly born by push rod, be passed to suspension column via push rod and jacking bar again, pressure and moment of torsion that such structure is born the front end of push rod are very big, thereby its intensity and steadiness are also poor.

Summary of the invention

Technical problem to be solved by this invention be provide at above-mentioned prior art present situation a kind of each several part distribution of weight rationally, intensity and steadiness are higher and be suitable for multi-purpose exhibition folding frame.

The present invention solves the problems of the technologies described above the technical scheme that is adopted: this kind multipurpose is opened up the folding frame synchronously, comprise at least three suspension columns, the termination, upper end of per two adjacent suspension columns connects with the railing jockey, middle tool one articulated section of described railing jockey, and its two ends are hinged with the termination, upper end of two adjacent suspension columns respectively; Also being set with one on each suspension column can up and down the axial operation carriage and of slippage can be to this axial in addition spacing expansion lock of operation carriage along suspension column; Be connected with hound between axial operation carriage that is connected with same suspension column and the railing jockey, its connected mode is, an end of described hound is hinged on the axial operation carriage, and the other end is hinged on the railing jockey; Described multipurpose is opened up the folding frame synchronously and is also had on one center hinge and center hinge once; It is characterized in that described going up between center hinge and following center hinge and each suspension column all has a crossbar bindiny mechanism to be connected, described crossbar bindiny mechanism comprises at least two connecting rods, and these connecting rods are divided into hinged two groups of middle part, the two ends of one group of connecting rod are hinged with last center hinge and axial operation carriage respectively, and two ends of another group connecting rod are hinged with the termination, upper end of following center hinge and suspension column respectively.For ease of the expansion and the gathering of exhibition folding frame, described upward center hinge and following center hinge are set in multipurpose and open up synchronously on the axis of folding frame.

Described center of going up center hinge has and can axially move the through hole of joining with a newel; And the described center of center hinge down has and can axially move the through hole of joining with newel, perhaps have and to limit the stairstepping gear hole that newel inserts distance, perhaps have one and can limit the bearing retaining that newel moves axially but can radially rotate, the center of this bearing retaining have one can fastening newel the hole, perhaps have can with termination, newel lower end be spirally connected fixing screw and Screw hole structure.When described multipurpose is opened up the folding frame as with the supporting integral body of large umbrella exhibition packing table frame the time synchronously, described newel can be the umbrella handle of large umbrella, also can be that multipurpose exhibition folding frame itself has a newel, and with the umbrella handle plug-in mounting of large umbrella or be hinged on the newel; When described multipurpose was opened up the folding frame synchronously as the stand shelf, described newel can be the flagpole that spreads out the advertisement flag of being inserted on the shelf; Same, described newel can also be the central power rod of tent etc., and certainly, this is advisable to be made as gear hole, bearing retaining or screw and Screw hole structure that can be fixedly connected at center hinge center at present.If but described multipurpose is opened up the folding frame synchronously as common table, the use of table frame, the then described through hole of going up center hinge and following center hinge center can not established yet.

The described center of center hinge down can be provided with and can axially move the through hole of joining with a newel; Described center of going up center hinge then is provided with screw and the Screw hole structure that can fixedly connected with termination, newel upper end.When being provided with like this, be convenient to described multipurpose and open up the folding frame synchronously as uses such as the table frame that can open up folding or disjunctor stages, at this moment, newel can be used as an extra load-bearing suspension column and shares part weight, also can determine whether newel is set according to its concrete purposes and possible load-bearing certainly.

Described multipurpose is opened up the folding frame synchronously can be designed to the above concatemer structure of two disjunctors or two disjunctors, and such structure is mainly used in the situation of interim disjunctor stage and relatively large table frame, shelf and tent.

The number of described suspension column can be three or four or six, but obviously its number is not limited in the front and exemplifies.

Described railing jockey can be made of so that one end end is hinged separately two rhizosphere bars, also can be hinged on the middle hinge with an end end separately and constitute, can also constitute by each hinged parallel railing more than two or two of middle hinge both sides by two rhizosphere bars.In order further to strengthen the intensity of parallel railing, can also between parallel railing, establish connecting rod.

Described expansion lock can launch lock or box fastener formula expansion lock or screw connected expansion lock for spring snap type.

Described suspension column can be the monomer suspension column, also can combine by two joints or more than two joints, wherein adopt between each joint be threaded or spring snap type connection etc. can in external diameter cooperate insert, scalable, lockable connected mode, so that need to adjust the height of suspension column as the case may be, multipurpose is opened up synchronously be more convenient for carrying after the folding frame folds, also can better adapt to the irregular situation in ground in addition.

Open up the upper edge of axially moving the carriage present position after the folding frame launches synchronously corresponding to multipurpose on the described suspension column and can be provided with limited block; This limited block can cooperate the expansion lock to limit the axially upper and lower position of operation carriage respectively, thereby the multipurpose after increase launches is opened up the steadiness of folding frame synchronously.

Described going up can be provided with the locking device that the lockable newel is axial, move radially on the center hinge.

The number of connecting rod is two in the described crossbar bindiny mechanism; Perhaps be three, wherein be parallel two with the hinged connecting rod of last center hinge, and with the hinged connecting rod of following center hinge be one, can certainly be opposite setting.The connecting rod number is many can to increase the weight capacity that whole multipurpose is opened up the folding frame synchronously.

Compared with prior art, the present invention has following obvious advantage: multipurpose is opened up the folding frame synchronously, it have synchronous expandable and foldable tent frame, synchronously the exhibition folding set up a stall shelf, open up folding table frame, whole exhibition packing table frame, exhibition folding disjunctor stage frame etc. synchronously synchronously, its center crossbar structure directly is articulated in lands suspension column, railing is by the also hinged suspension column that lands of hound, bearing capacity is all concentrated in the suspension column that lands, broken through traditional structure.This novel structure has also been realized multiduty purpose.This structure provides a series of portable bands, just collection, and the higher multiple outdoor goods of practical value.

Description of drawings

Fig. 1 is the perspective view of the embodiment of the invention one when deployed condition;

Fig. 2 is the front view that multipurpose shown in Figure 1 is opened up the folding frame synchronously;

Fig. 3 is the partial structurtes cross-sectional schematic that snap-on launches lock in the suspension column;

Fig. 4 is that suspension column raising middle flask button launches lock partial structurtes schematic diagram;

Fig. 5 is the front view of the embodiment of the invention two when deployed condition;

Fig. 6 is that multipurpose shown in Figure 5 is opened up the front view of folding frame when semi-collapsed condition synchronously;

Fig. 7 is that multipurpose shown in Figure 5 is opened up the front view of folding frame when full folded state synchronously;

Fig. 8 is that multipurpose shown in Figure 5 is opened up the vertical view after the folding frame is taken out center-pole synchronously;

Fig. 9 is the partial structurtes cross-sectional schematic that newel and following center hinge are connected fit system one;

Figure 10 is the partial structurtes cross-sectional schematic that newel and following center hinge are connected fit system two;

Figure 11 be newel be connected with following center hinge fit system two and lockable newel axially, the partial structurtes cross-sectional schematic of the locking device that moves radially;

The last center hinge cam spanner locking device partial structurtes schematic top plan view that Figure 12 is the locked-center axis of a cylinder, move radially;

Figure 13 is the partial structurtes cross-sectional schematic that interior external diameter cooperates the snap-on locking device of the flexible suspension column of plug bush type;

The partial structurtes schematic top plan view that Figure 14 is is a secondary crossbar with three connecting rods;

Figure 15 is that multipurpose is opened up the front view that the supporting integral body of folding frame and large umbrella is opened up the packing table frame synchronously;

Figure 16 is that multipurpose is opened up the partial structurtes schematic diagram that the folding frame is used for synchronous expandable and foldable tent frame synchronously;

Figure 17 is the letter schematic diagram that the triangular form multipurpose is opened up the vertical view of folding frame synchronously;

Figure 18 is the letter schematic diagram that the hexangle type multipurpose is opened up the vertical view of folding frame synchronously;

Figure 19 is the partial structurtes schematic diagram of the embodiment of the invention three when deployed condition;

Figure 20 is that shown in Figure 19 being threaded launched the local enlarged diagram of lock;

Figure 21 by positive square multipurpose open up synchronously synchronous exhibition folding disjunctor table frame that folding frame disjunctor forms, exhibition folding disjunctor tent frame or exhibition synchronously synchronously roll over disjunctor stage frame etc. partial structurtes the letter schematic diagram of vertical view;

Figure 22 by the hexangle type multipurpose open up synchronously synchronous exhibition folding disjunctor table frame that folding frame disjunctor forms, exhibition folding disjunctor tent frame or exhibition synchronously synchronously roll over disjunctor stage frame etc. partial structurtes the letter schematic diagram of vertical view.

Specific embodiment

Below in conjunction with embodiment the present invention is described in further detail.

Embodiment one

As Fig. 1～shown in Figure 4, be one embodiment of the present invention.As depicted in figs. 1 and 2, the multipurpose in the present embodiment is opened up the folding frame synchronously and is comprised four suspension columns 1, and suspension column 1 can be the monomer suspension column, also can be that interior external diameter cooperates the suspension column of male telescope more than two.The upper end of per two adjacent suspension columns 1 connects with railing jockey 2, railing jockey 2 is made of so that one end end is hinged separately two identical railing 2a of length, thereby in the middle of railing jockey 2, constitute an articulated section, and railing jockey 2 two ends are hinged with the termination, upper end of two adjacent suspension columns 1 respectively; Also being set with one on each suspension column 1 can be to this axial in addition spacing expansion lock 4 of operation carriage 3 along the axial operation carriage 3 of suspension column slippage about in the of 1 and; Launching lock 4 and both can be as shown in Figure 3 spring snap type, to launch lock 5 also can be that as shown in Figure 4 box fastener formula is launched lock 6; Be connected with a hound 7 between axial operation carriage 3 that is connected with same suspension column 1 and the railing jockey 2, its connected mode is, an end of hound 7 is hinged on the axial operation carriage 3, and the other end is hinged on the railing 2a; Multipurpose is opened up the folding frame synchronously and is also had on one center hinge 8 and center hinge 9 once, and last center hinge 8 is positioned at multipurpose with following center hinge 9 and opens up synchronously on the axis of rolling over frame; All there is a crossbar bindiny mechanism 10 to be connected between last center hinge 8 and following center hinge 9 and each suspension column 1, described crossbar bindiny mechanism 10 comprises two connecting rod 10a, 10b, and it is hinged in the middle of two connecting rod 10a, the 10b, the two ends of a connecting rod 10a are hinged with last center hinge 8 and axial operation carriage 3 respectively, and the two ends of another root connecting rod 10b are hinged with the termination, upper end of following center hinge 9 and suspension column 1 respectively.In addition, open up the upper edge of axially moving carriage 3 present positions after the folding frame launches synchronously corresponding to multipurpose on the suspension column 1 and can also be provided with fixing limited block 11.

Spring snap type expansion lock 5 as shown in Figure 3 has the termination of exposing the hole of being opened and is hemispheric spacing 12 from suspension column 1 tube wall, certain its termination also can be made as taper or other have the shape of similar functions, and spacing 12 the other end is fixed on one and is embedded on suspension column 1 intraluminal " U " the shape spring leaf 13.Launching multipurpose opens up when rolling over frame synchronously, axially operation carriage 3 impulse sections are pressed into spacing 12, but after moving to multipurpose on the axial operation carriage 3 and opening up the folding frame synchronously and launch fully, spacing 12 of spring snap type expansion lock 5 is ejected from the hole under the elastic force effect of spring leaf 13, withstand on the lower end of axial operation carriage 3, and simultaneously, it is spacing axially to move 11 of the limited blocks that the upper end of carriage 3 is fixed on again on the suspension column 1, thereby the position of axially moving carriage 3 is limited fully.This spring snap type launches lock 5 also can axially establish the hole on operation carriage 3 walls, and spacing 12 structure that ejects from axial operation carriage 3 cinclides can not established limited block 11 in such cases fully.

As shown in Figure 4 box fastener formula is launched lock 6 and is had a lever spanner 14 that is hinged on the axial operation carriage 3, and the middle part of lever spanner 14 is hinged with one and buckles and climb 15, can climb 15 gib heads that cooperate 16 with button and be fixed with one on the suspension column 1.Same, when launching multipurpose and open up the folding frame synchronously and put in place, only need button climbed and can play the effect spacing on 15 gib heads 16 that buckle on the suspension column 1 axial operation carriage 3.But this box fastener formula is launched lock 6, also lever spanner 14 can be articulated on the suspension column 1, and gib head 16 is fixed in the anti-setting of axial operation carriage 3.

The described multipurpose of present embodiment open up synchronously the folding frame mainly can be used as synchronous exhibition folding stand shelf and synchronously exhibition folding table frame use.

Embodiment two

As Fig. 5～Figure 16, be another kind of better embodiment of the present utility model.As Fig. 5～shown in Figure 8, multipurpose in the present embodiment is opened up the folding frame synchronously and is comprised four suspension columns 1, suspension column 1 is the monomer suspension column, also can adopt interior external diameter as shown in figure 13 to cooperate the suspension column of male telescope more than two, the following suspension column 1b inserting of establishing U type snap-on 1a in it is in last suspension column 1c, and the sphere head 1d of snap-on 1a locks in the cinclides of suspension column 1c after its elongation.The termination, upper end of per two adjacent suspension columns 1 connects with railing jockey 2.Railing jockey 2 is made of each hinged two parallel railing 2b of a middle hinge 17 both sides, certainly, railing jockey 2 also can be made of each hinged rhizosphere bar 2a of a middle hinge 17 both sides, and the two ends of railing jockey 2 are hinged with the termination, upper end of two adjacent suspension columns 1 respectively.Also being set with one on each suspension column 1 can be to this axial in addition spacing expansion lock 4 of operation carriage 3 along the axial operation carriage 3 of suspension column slippage about in the of 1 and; Launching lock 4 and both can be as shown in Figure 3 spring snap type, to launch lock 5 also can be that as shown in Figure 4 box fastener formula is launched lock 6.Be connected with a hound 7 between axial operation carriage 3 that is connected with same suspension column 1 and the railing jockey 2, its connected mode is, an end of hound 7 is hinged on the axial operation carriage 3, and the other end is hinged on the parallel railing 2b.Multipurpose is opened up the folding frame synchronously and is also had on one center hinge 8 and center hinge 9 (with reference to Fig. 1) once, and last center hinge 8 is positioned at multipurpose with following center hinge 9 and opens up synchronously on the axis of rolling over frame.All there is a crossbar bindiny mechanism 10 to be connected between last center hinge 8 and following center hinge 9 and each suspension column 1, described crossbar bindiny mechanism 10 comprises two connecting rod 10a, 10b, and it is hinged in the middle of two connecting rod 10a, the 10b, the two ends of a connecting rod 10a are hinged with last center hinge 8 and axial operation carriage 3 respectively, and the two ends of another root connecting rod 10b are hinged with the termination, upper end of following center hinge 9 and suspension column 1 respectively; Certainly, described crossbar bindiny mechanism 10 also can be made of (referring to Figure 14) the connecting rod more than three or three, wherein is parallel two with the hinged connecting rod 10a of last center hinge 8, and with the hinged connecting rod 10b of following center hinge 9 be one.In addition, open up the upper edge of axially moving carriage 3 present positions after the folding frame launches synchronously corresponding to multipurpose on the suspension column 1 and can also be provided with fixing limited block 11 (with reference to Fig. 1).

As Fig. 5～shown in Figure 8, described center of going up center hinge 8 has and can axially move the through hole 8a that joins with a newel 18, and the described center of center hinge 9 down has a stairstepping gear hole 9a, the lower end of newel 18 is built-in with a threaded interior piece 18a, one screw 19 penetrates pad 20 and bearing holder (housing, cover) 21 is screwed into the interior piece 18a from stairstepping gear hole 9a, can not move axially thereby limit newel 18, can radially rotate (referring to Figure 11).Certainly, other modes that also can adopt that cooperate of described down center hinge 9 and newel 18, as establishing a through hole at the center of center hinge 9 down, newel 18 is inserted via through holes and is directly withstood on the ground; Or down the center of center hinge 9 have can with termination, newel 18 lower end be spirally connected fixing screw and Screw hole structure; Perhaps adopt and connect fit system as Fig. 9 or Figure 10.

Shown in Figure 9 is the moving bearings at both ends retaining structures that fit over down center hinge 9 centre bore 9b in newel 18 lower ends, two bearings 22 are separately fixed at newel 18 and are positioned at the upper/lower terminal of center hinge 9 centre bore 9b part down, can not move axially thereby limit newel 18, can radially rotate.

Figure 10 is that center hinge 9 is moved another structure of joining with newel 18 lower ends down, it has a bearing 23 greater than newel 18, the lower end of newel 18 is limited by the gear hole 9c at following center hinge 9 centers, following center hinge 9 upper ends are provided with another end ring 24, it limits newel 18 and can not move axially, and can radially rotate.

Described go up can be provided with on the center hinge 8 as Figure 11 or lockable newel 18 shown in Figure 12 axially, the locking device that moves radially.Locking device shown in Figure 12 is the structure of the one-sided hinged cam spanner 25 of axle of two ears that stretch out from last center hinge 8 central through hole 8a openings, and its cam surface is pulled to the monaural outer wall, can locked-center post 18 axially, move radially.Locking device shown in Figure 11 is between two ears that stretch out of center upper hinge 8 central through hole 8a openings a cam spanner 26 to be arranged, and they are structures that axle is worn mutually, and its cam surface is pulled to newel 18 sidewalls, can locked-center post 18 axially, move radially.This locking device also can be held tightly or screw is annotated the device of tight center post jamb etc. with screw.

The above-mentioned structure that goes up center hinge 8, following center hinge 9 cooperation newels 18 is mainly used in synchronous exhibition packing table frame (referring to Figure 15).The locking device of center hinge 8 on it, mainly be used for adjusting the umbrella cover sunshade, the large umbrella of the angle of keeping off the rain 27, its adjustable angle is whole, thereby makes wind-force can not change the angle of inclination of umbrella cover, it also can play reinforcement effect to the shelf of whole expansion simultaneously.

Above-mentioned centre bore 8a and 18 axial moving joining of newel of going up center hinge 8,18 times head ends of newel are fixed in the structure at hinge 9 centers under the center, it can be used for the synchronous expandable and foldable tent frame as Figure 16, also opens up the packing table frame synchronously applicable to the large umbrella of not adjusting angle simultaneously certainly.

Synchronous exhibition packing table frame shown in Figure 15, its newel 18 is connected with umbrella post 28, can be the plug-in type of interior external diameter cooperation or the structure that is threaded.But the best is to connect into folding large umbrella 27 with hinge, constitute can whole exhibition folding umbrella table frame, desktop 29 is designed to the suitcase of two halves box body combinations, after the umbrella table is folding, the suitcase that the desktop of packing into constitutes.It is family's out on tours, flow set up a stall, portable band such as field work, the just splendid apparatus of collection.This umbrella table frame suitcase structure that can all fold is current a kind of novel apparatus both domestic and external.The also available ground nail of suspension column 1 of this integral body exhibition packing table frame is in addition firm.

Embodiment three

As Figure 19～Figure 22, be the third better embodiment of the present invention.As shown in figure 19, present embodiment is the concatemer structure that is applicable to synchronous exhibition folding disjunctor stage frame.Its construction unit is to similar substantially described in the embodiment two, and difference is: 1, it has and can axially move the through hole of joining with a newel 18 in center of center hinge 9 down; And the center of going up center hinge 8 have can with termination, newel 18 upper end be spirally connected fixing screw and Screw hole structure (referring to Figure 11), promptly can fixedly connected with last center hinge 8 via screw in the termination, upper end of newel 18.2,, launch trivial 4 to adopt the expansion lock 30 that is threaded as shown in figure 20 to be advisable for increasing the steadiness of whole stage frame.3, in order further to strengthen the intensity of parallel railing 2b, between parallel railing 2b, be provided with connecting rod 31.4, for strengthening the intensity of stage, can upwards dig when folding for can also be on the middle hinge 17 of railing jockey 2 hinged one, and can dig and support ground when launching downwards land the suspension column (not shown).5, the outside of exhibition folding frame can be established buckle to climb and be launched to lock: it is buckled and climbs 34 lower ends and be articulated on the axial operation carriage 3, there is the gib head 35 of a R type its upper end, when exhibition folding frame expansion synchronously, gib head 35 buckles in the breach on suspension column 1 top, this structure is mainly used in a frame and stage frame, its gib head 35 is buckled in suspension column 1 top breach, pushed down by panel, can in use not take off.

Both can be designed to as shown in figure 21 concatemer structure as required as the concatemer structure of synchronous exhibition folding disjunctor stage frame and also can be designed to as shown in figure 22 concatemer structure.

Also can not establish newel 18 and the above-mentioned suspension column that lands as the concatemer structure of synchronous exhibition folding disjunctor stage frame, such structure can be used for the lower synchronous exhibition folding stage frame of requirement of strength.

Exhibition folding stage frame can be used as dais or, two people's dais synchronously, and they can be monomers, also can be monomer assembly groups; Exhibition folding disjunctor stage frame also can infinitely be pieced together and form the large-scale stage frame that is suitable for large-scale performance synchronously.They can also utilize the hole on the suspension column 1, set up tent.Synchronous exhibition folding disjunctor stage frame provides a kind of portable band, the just novel apparatus of collection for the open-air performance of flowing of troupe, the interim dais of rally etc.

Though mentioned multipurpose is opened up the folding frame synchronously or constituted the construction unit of opening up folding disjunctor stage frame synchronously and all adopts four suspension columns 1 among above-mentioned several embodiment, this does not also mean that the number of suspension column 1 can only adopt four.In fact, the number of suspension column 1 can adopt three, five, the six roots of sensation and more fully as required, is configured to triangular form (referring to Figure 17), pentagonal, hexangle type shapes such as (referring to Figure 18) thereby make multipurpose open up folding synchronously.

Multipurpose is opened up the folding frame synchronously, and it is the synchronization structure of the hinged formation of each parts, and it is easy to use, simple, as long as separate suspension column 1 and zygostyle pin 1, can realize launching and folding.

Multipurpose is opened up the expansion operation of folding frame synchronously: at first draw back suspension column 1, suspension column 1 is separated, thereby whole exhibition folding frame is drawn back, get final product to operation carriage 3 with launching lock 4 lock shaft then.If be that spring snap type launches lock 5, be pushed into and surpass spacing 12 and can automatically lock (referring to Fig. 3) as long as will axially move carriage 3; If be that the box fastener formula is launched lock 6, then button is climbed 15 and hook gib head 16, pull down lever spanner 14 and get final product (referring to Fig. 4); If be to be threaded to launch lock 30, as long as the nut 32 that launches lock that turns clockwise is tightened (referring to Figure 20) with screw 33; If be that cam spanner launches lock, as long as cam spanner is pulled into promptly finishing expansion (referring to Figure 11 and Figure 12).

Multipurpose is opened up the folding operation of folding frame synchronously: at first be to open to launch lock; Snap-on launches lock 5, if with spacing 12 press...with one's finger into, carriage 3 is down moved; The box fastener formula is launched lock 6, and lever spanner 14 is cocked, and button is climbed 15 and deviate from gib head 16; Be threaded and launch lock 30, be rotated counterclockwise the nut 32 that launches lock and break away from screw 33; Cam spanner launches lock, and cam spanner is pulled out.Then, to the center bunchy of slippaging, promptly finish folding suspension column 1.

Claims (9)

1, a kind of multipurpose is opened up the folding frame synchronously, comprise at least three suspension columns (1), the termination, upper end of per two adjacent suspension columns (1) connects with railing jockey (2), middle tool one articulated section of described railing jockey (2), and its two ends are hinged with the termination, upper end of two adjacent suspension columns (1) respectively; Also being set with one on each suspension column (1) can the axial operation carriage (3) and of slippage can be to this axial in addition spacing expansion lock (4) of operation carriage (3) up and down along suspension column (1); Be connected with hound (7) between axial operation carriage (3) that is connected with same suspension column (1) and the railing jockey (2), its connected mode is, one end of described hound (7) is hinged on the axial operation carriage (3), and the other end is hinged on the railing jockey (2); Described multipurpose is opened up the folding frame synchronously and is also had center hinge on (8) and center hinge (9) once, it is characterized in that described going up between center hinge (8) and following center hinge (9) and each suspension column (1) all has a crossbar bindiny mechanism (10) to be connected, described crossbar bindiny mechanism (10) comprises at least two connecting rod (10a, 10b), and these connecting rods are divided into hinged two groups of middle part, the two ends of one group of connecting rod (10a) are hinged with last center hinge (8) and axial operation carriage (3) respectively, and two ends of another group connecting rod (10b) are hinged with the termination, upper end of following center hinge (9) and suspension column (1) respectively.

2, multipurpose as claimed in claim 1 is opened up the folding frame synchronously, it is characterized in that the center of described last center hinge (8) has and can axially move the through hole (8a) of joining with newel (18); And the described center of center hinge (9) down has and can axially move the through hole (9b) of joining with newel (18), perhaps have and to limit the stairstepping gear hole (9a) that newel (18) inserts distance, perhaps have one and can limit that newel (18) moves axially but the bearing that can radially rotate retaining (23,24), the center of this bearing retaining (23,24) have one can fastening newel (18) the hole, perhaps have can with newel (18) termination, lower end be spirally connected fixing screw and Screw hole structure.

3, multipurpose as claimed in claim 1 is opened up the folding frame synchronously, it is characterized in that the center of described following center hinge (9) has and can axially move the through hole of joining with newel (18); And described center of going up center hinge (8) has screw (19) and the Screw hole structure that can fixedly connected with termination, newel (18) upper end.

4, multipurpose as claimed in claim 1 is opened up the folding frame synchronously, it is characterized in that the number of connecting rod (10a, 10b) in the described crossbar bindiny mechanism (10) is two; Perhaps be three, wherein be parallel two with the hinged connecting rod (10a) of last center hinge (8), and with the hinged connecting rod (10b) of following center hinge (9) be one.

5, open up the folding frame synchronously as claim 1 or 2 or 3 described multipurposes, it is characterized in that it is two disjunctors or the above concatemer structure of two disjunctors that described multipurpose is opened up the folding frame synchronously.

6, open up the folding frame synchronously as claim 1 or 2 or 3 described multipurposes, it is characterized in that described railing jockey (2) by two rhizosphere bars (2a) separately with the hinged formation in one end end, perhaps be hinged on a middle hinge (17) with an end end separately and go up formation, perhaps constitute by each hinged parallel railing (2b) more than two or two of a middle hinge (17) both sides by two rhizosphere bars (2a).

7, open up the folding frame synchronously as claim 1 or 2 or 3 described multipurposes, it is characterized in that described expansion lock (4) launches lock (5) for spring snap type or the box fastener formula is launched lock (6) or screw connected expansion lock (30).

8, open up the folding frame synchronously as claim 1 or 2 or 3 described multipurposes, it is characterized in that described suspension column (1) is the monomer suspension column, perhaps combine by two joints or more than two joints, wherein adopt between each joint be threaded or spring snap type connection etc. can in external diameter cooperate insert, scalable, lockable connected mode.

9, multipurpose as claimed in claim 2 is opened up the folding frame synchronously, it is characterized in that the described center hinge (8) that goes up is provided with the locking device that the lockable newel is axial, move radially.

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