CN2031025U

CN2031025U - Telescopic stadium

Info

Publication number: CN2031025U
Application number: CN 86210674
Authority: CN
Inventors: 迟耀文
Original assignee: Individual
Current assignee: Individual
Priority date: 1986-12-27
Filing date: 1986-12-27
Publication date: 1989-01-18

Abstract

The utility model relates to a telescopic tribune, and can be used for enjoying programs in a television studio, a club, a dance hall, a theater, a stadium, a rehearsal room and universities and academies or for listening to classes in universities and academies. When stretched, the tribune becomes a step ladder; when retracted, the tribune becomes a laminated body. Because caster wheels are arranged on the bottom layer, when unused, the tribune which can be pushed into the storeroom for storing makes the flat type hall multifunctional. The telescopic mechanism composed of a seat box, seats, landing legs, a sledge, and a draw rod, is the main part of the tribune. The electric motor, the electric magnet and the driving telescopic mechanism can realize the autocontrol.

Description

Telescopic stadium

Telescopic action is seen relatives of Taiwan compatriots living on the Mainland's mechanical engineering field, can be widely used in the TV broadcast Room, clubhouse, dance hall, arenas, stadium, rehearsal field, big-and-middle universities and colleges for the usefulness of viewing and admiring program or listening to the teacher.After stretching, this grandstand becomes stairstepping; Be the box duplexer during contraction, not the time spent, can push in the storehouse and deposit, realized that formula hall, level land is multi-function.

Fig. 1 is the grandstand stereogram.It is made up of seat-box (1), seat (2), telescoping mechanism (3), driving mechanism (4), castor (5), supporting leg (6), safety fence (7), a few part.

Seat-box structure such as Fig. 2.The framework of angle aluminium or angle steel rivet welding (19) is its main body, all around the panel made from metal sheet (8), side plate (21), backboard (22) sealing.Eight bearings (20) that are equipped with in the biside plate can support the brisk slip in the chute (9) of following seat-box of whole seat-box.On the pedal (10) of framework top, fixing chair leg swivel becket (11), solid becket bridle (16), seat-box lockhole (23).Face, side, backboard that its below is equipped with supporting leg retainer ring (13), pulley (18), directive wheel (17), electromagnet (14), latch (15), balladeur train (12), each seat-box are again the combination deckle board of the folded body of box when shrinking, and can also doublely do seat leg after the seat-box panel stretches and support.Make that the grandstand number of plies is P, then 3≤P≤7(P is a positive integer), the seat-box by-pass also can independently exist.

Fig. 3 is armchair structure figure, sofa, two kinds of forms of common chair is arranged, is illustrated as sofa-type.Back cushion (25), the sheet that is fixed (24) are fastened between the two chair legs (33), per two public one legs of sofa, the row's of formation chair.Seat cushion (26) connects together with the seat holder (27) that is welded with rotating shaft (29), and after rotating shaft penetrated chair midleg commentaries on classics hole (30), seat cushion will rotate between the chair leg.Rotating range is controlled at 0 °～108 ° angles by banking stop (28).After every chair leg bottom all has axis hole (32), chair leg turning cylinder (31) to penetrate axis hole and chair leg swivel becket, row's chair just can be on seat-box unitary rotation.When grandstand shrinks, in the cavity of seat volt between two seat-boxs.Making row's chair number of every layer of seat-box is q, and then 2≤q≤6(q is a positive integer).

Flexible principle is seen Fig. 4, telescoping mechanism is by the pull bar (35) that is fixed on the balladeur train in the cavity below the seat-box, slides before and after can be in its strip hole and reconcile nut (36) with folding ear (34), the stroke of the riveted joint of pull bar front end and form, the folding ear other end is connected it on the chair leg by rotating shaft, during stretching, the reach of following seat-box is installed in seat on this seat-box and coupled pull bar in company with reach.Because balladeur train is fixed on the seat-box, so when pull bar moved forward in the draw runner hole, balladeur train was static relatively.When pull bar was advanced to the afterbody adjusting nut and touches balladeur train, pull bar halted, and formed a resistance f who stops the seat reach simultaneously ₂At this moment.Following seat-box is at reach power f ₁Effect also will move on down, so, f ₁, f ₂In the rotating shaft of chair leg, formed a pair of turning pair.Under force couple role, turnover seat gets up, and transverse plane lands fully until back, chair leg bottom, and turning pair can't make seat be rotated further again, and stretching stops.During contraction, move behind the following seat-box.Move after the companion of seat pull bar.Stop owing to be subjected to the seat-box panel, seat back has been subjected to reach power, and the power of moving has formed turning pair again behind reach power and the following seat-box, and seat falls around chair axle folding under the effect of couple.Seat folding after, lower box moves after continuing, balladeur train moves forward relatively, when balladeur train moves on to the pull bar root when touching with the pole junction, balladeur train is blocked, and can not continue reach, at this moment just in time up and down seat-box overlap fully, contraction stops.

Supporting leg automatic deploying and retracting principle is shown in figure (5).Supporting leg (6) bottom is being fixed the sliding rope of sliding rope (38) other end and is being walked around pulley, the front and back directive wheel that is fixed on below the seat-box, is tied to down on the solid becket bridle on the seat-box pedal.When grandstand stretches, following seat-box reach, sliding rope loosens, and supporting leg is under action of gravity, and is sagging naturally around leg shaft (37).Stretching puts in place, and supporting leg is also sagging to put in place.During contraction, move behind the seat-box down, sliding rope tightens, and supporting leg lifts, and when seat-box overlapped fully up and down, supporting leg was regained the original place.

Driving mechanism (4) is mainly by stuck-at- ^#Motor in the seat-box cavity, gearbox are formed.Control circuit and tractive magnet, latch, jack, be auxiliary body.Driving principle is referring to Fig. 6

1. mass motion: during mass motion, realize interlocking by being installed in every layer of latch jack on the seat-box backboard between seat-box.Control circuit is connected motor power by A.C. contactor, and the motor drives gearbox drives castor (5) operation.Though driving elements such as motor are left with lower floor, because interlocking between seat-box, base member case just can drive operation of other seat-box, has realized that integral body advances or retreat.Advance or retreat and transfer realization by the control motor is positive and negative.About turn, apply revolving force to castor artificially and realize.

2. stretch: in the actuating motor operation simultaneously, A.C. contactor is connected the superiors 7 during stretching ^#It is up that the power supply of fixing electromagnet on the seat-box backboard, electromagnet get the moving latch of electric suction, and 7 ^#, 6 ^#Seat-box takes off lock.Because other each layer seat-box interlocking as before so the bottom motor can only drag following which floor integral body is advanced, and has realized the superiors' stretching.When the superiors' seat-box stretching put in place, travel switch started 6 again ^#Electromagnet on the seat-box backboard is inhaled moving latch and is taken off lock and carry out time high-rise the stretching, and the like, stretching up to the bottom puts in place, drives stretching work and stops.

3. shrink: during contraction, motor counter-rotating operation, the bottom 1 ^#The seat-box rollback is when falling back on and 2 ^#When seat-box overlaps, 2 ^#The outage of seat-box afterbody electromagnet discharges latch and falls into 1 naturally ^#Realized two-layer seat-box interlocking in the seat-box jack, after the locking, two seat-boxs are rollback together, again with 3 ^#Seat-box overlaps interlocking, and the like up to 7 ^#Seat-box also overlaps and finishes, and contraction stops.

The telescopic action grandstand of electronic control only needs a staff to take control box to get final product operate as normal.Except that power type, also have the type hand movable stand, both mechanisms are the same, and different part is that type hand is that manpower driving telescoping mechanism is realized flexible.Control circuit figure slightly.

Claims

1, the telescopic action grandstand is made up of seat-box, seat, supporting leg, telescoping mechanism, driving mechanism castor, safety fence, it is characterized in that:

A, seat-box are frame constructions;

Rotating shaft is arranged at B, chair leg bottom;

C, telescoping mechanism are made up of folding ear, pull bar, balladeur train, adjusting nut;

D, motor, gearbox, electromagnet are formed driving mechanism.

2,, it is characterized in that seat-box framework two side bottoms are equipped with eight bearings according to the described flexible grandstand of claim 1.

3, according to claim 1,2 described flexible grandstands, it is characterized in that bearing slideway is Chute.

4, according to the described flexible grandstand of claim 1, it is characterized in that having on the balladeur train strip hole.

5, according to claim 1,4 described flexible grandstands, it is characterized in that rolling over the ear two ends respectively with chair leg, pull bar, be connected.

6,, it is characterized in that pull bar passes the balladeur train strip hole according to claim 1,4,5, described flexible grandstand.

7,, it is characterized in that adjusting nut and folding ear are positioned at the balladeur train both sides according to claim 1,5,6 described flexible grandstands.