CN2475331Y - Automatic sitting-board springback device for row chair - Google Patents

Abstract

The utility model discloses a seat board automatic spring back device used by a row chair, comprising a fixture, a seat tile, a spring, an upper screw, a lower screw, a gland, a plastic part and pearls, all critical components of the device is used by metallic material, which can prolong service life, the seat tile is an integral structure whose boundary is flanged and centre is provided with a strengthen salient, which can increase the strength of the seat tile, stressing more better, the screw is set with a nonmetallic casing, which can achieve the effects of eliminating noise and damping when the seat tile is rotating, the whole structure has the advantages of reasonable collocation, good using effect and long service life. The entire device is covered by a plastic cover, which is beautiful and achieves protective effect.

Description

Row's chair seat board auto resilient mounting

The utility model relates on a kind of row of being applied to chair, and can make the device of the automatic resilience of seat board.

Row's chair seat board is turned up to put down and is mainly contained dual mode, and a kind of is manual, and a kind of is automatic.The seat board of automatic resilience, after the people left seat board, seat board can be upspring under the effect of auto resilient mounting automatically.The auto resilient mounting of widespread usage as shown in Figure 1, 2 at present, it is mainly by the unit of plastic 1 that is fixed on the upright leg transverse tube 36 of row's chair, both sides have the seat watts 2 of flange 7, watt axle 3 and the spring 4 that is enclosed within on watt axle are formed, and seat watt is fixed on the unit of plastic by a watt axle, and spring housing is on watt axle, the one end is fixed in the open slot 33 of watt axle, the other end places outer rim 34 places of seat watt, and its position changes with the rotation of seat watt, and spring is also along with screwing or loosening.When the people sat down, seat board 35 downward (clockwise) rotated, and forwards certain position to, and the horizontal straight pin 5 of seat watt rear end is blocked by the rear end 6 of unit of plastic, and seat watt stops operating, and this moment, spring screwed; When the people left the seat, external force was removed, and under the effect of spring force, seat board is realized resilience.Mainly there is following shortcoming in this kind auto resilient mounting:

1, unit of plastic is a critical component in this auto resilient mounting, and no matter from structure or on material, it all exists stressed bad, flimsy deficiency.

2, another critical component seat in this device watt is formed by cold drawing both sides flange, the structural strength of this both sides flange, and also not attractive in appearance.

3, whole drive mechanism is reasonable inadequately, and result of use is not ideal enough.

4, overall structure is exposed to the outside, both influenced attractive in appearance, parts again easily corrosion damage.

It is more reasonable that the purpose of this utility model provides a kind of structure, stressed good, long service life, and row's chair seat board auto resilient mounting more attractive in appearance.

For achieving the above object, the utility model is taked following design: a kind of row's chair seat board auto resilient mounting, and it comprises fixture, seat watt, spring, it is characterized in that: it also comprises screw rod, time screw rod, gland, working of plastics and pearl; Described fixture has depressed part; Described watt is back that all flange, centre have the triangle supporting structure of strengthening projection, the depressed part that its round end has last screw rod containing hole and matches with fixture depression position, and its round end edge has following screw rod fastening part; Described working of plastics have can ccontaining described pearl recess; Described upper and lower screw rod can pass fixture and be fixedly connected on the upright leg of row's chair with fixture; Described watt the depressed part and the mutual closing of depressed part of fixture, and by gland, working of plastics, pearl is with the two contact, gland is fixed on two screw rods by nut; Described spring housing is on described working of plastics, and the one end is fixedly connected on the gland, and the other end places described seat watt edge.

Described going up on the screw rod is with non-metallic casing.

On the described nut locking plate is installed.

Described whole device outside is covered with plastic jacket.

The utility model is owing to adopt above-mentioned design to make it have the following advantages:

1, all critical component adopts metal parts, has prolonged service life.

2, seat watt be a peripheral flanging, and umbilicate overall structure has increased the intensity of seat watt, stressed better.

3, go up screw rod and be with non-metallic casing, during seat watt rotation, play abating the noise and the effect of damping.

4, the overall structure collocation is reasonable, and result of use is good, long service life.

5, whole device is covered by plastic jacket, and is not only attractive in appearance but also play a protective role.

The utility model is described in further detail below in conjunction with accompanying drawing.

Fig. 1 is a prior art master TV structure schematic diagram

Fig. 2 is a prior art plan structure schematic diagram

Fig. 3 is the utility model overall structure schematic diagram

Fig. 4 removes plastic jacket left side TV structure schematic diagram for Fig. 3

Fig. 5 looks schematic diagram for a seat watt master

Fig. 6 is Fig. 5 left side TV structure schematic diagram

Fig. 7 looks up structural representation for Fig. 5

Fig. 8 is Fig. 5 A-A schematic cross-section

Fig. 9 is the locking plate structural representation

Figure 10 looks schematic diagram for the gland master

Figure 11 overlooks the sectional structure schematic diagram for Figure 10

Figure 12 is a working of plastics master TV structure schematic diagram

Figure 13 is Figure 12 plan structure schematic diagram

Figure 14 is a fixture master TV structure schematic diagram

Figure 15 overlooks the sectional structure schematic diagram for Figure 14

Figure 16 is a plastic jacket master TV structure schematic diagram

Figure 17 overlooks the sectional structure schematic diagram for Figure 16

Mounting structure schematic diagram when Figure 18 uses for the utility model

Similar alternative arrangements schematic diagram when Figure 19 uses for the utility model

As shown in Figure 3, Figure 4, the utility model comprises that 8, one of metal fixings have the last screw rod 9 of non-metallic casing, following screw rod 25, seat watts 10, gland 11, working of plastics 12, pearl 13, spring 27.

As Figure 14, shown in Figure 15, described metal fixing 8 integral body are a cover case, and it has one and protrudes position 14, and these protuberance site surface central authorities are depression 37 shapes.Have described upper and lower screw rod on it and pass hole 26.

As Fig. 5, Fig. 6, Fig. 7, shown in Figure 8, described watt 10 is peripheral flanging 15, and the centre has the triangle supporting mass that can combine with seat board of depression 16.Peripheral flanging 15 and intermediate recess 16 have played booster action, make the more reasonable stress of seat watts 10, and intensity is better.Its round end 22 has the depression 18 that when rotation can match for described 14 surface depressions positions, protrusion position of going up the ccontaining slotted hole 17 of screw rod 9 and and described fixture 8.Round end 22 edges have a spring banking stop 21 and one can be by the described fastening part 20 of screw rod 25 blockings down when it rotates to certain position.Seat watts 10 also has the connector 32 that is connected with seat board.

Figure 10,11 has shown the structure of gland 11.

Figure 12, Figure 13 have shown the structure of working of plastics 12.Working of plastics 12 integral body are cylindric, and its inside has reinforcement 23, and its bottom has a recess 24 that matches with described pearl 13.

During assembling, as shown in Figure 3, Figure 4, described upper and lower screw rod 9,25 passes two holes 26 of described fixture 8 respectively and together is fixedly connected on seat with described fixture 8 and stands on the leg.Described watt 10 the depression position 18 and depression position 37 closing mutually of described fixture 8.Last screw rod 9 just in time is placed in the slotted hole 17 of seat watts 10, and the non-metallic casing on it abates the noise when playing seat watt 10 rotations and the effect of damping.Following screw rod 25 is positioned at outside seat watt round end 22 edges.Described spring 27 1 ends are fixedly connected on aperture 38 places of gland 11, and the other end places banking stop 21 places of seat watts 10.Spring 27 is enclosed within on the described working of plastics 12, and it is glanded 11 with described working of plastics 12, pearl 13 and withholds present watt 10 depression position 18, and working of plastics 12 plays fixing spring, compresses the effect of pearl 13.Gland 11 is to be fixed on two screw rods 9,25 with nut 28, and is loosening in order to prevent in the present watt rotation process of nut by adjusting nut 28 adjustable bed rearrangements watt 10 degree of flexibility of rotating, and is added with locking plate 29 (as shown in Figure 9) in nut 28 outsides.In order to increase overall appearance and to reach protective effect, whole device outside is covered with plastic jacket 30.

When the utility model used, the fixture 8 directly row's of being fixed on chair stood on the leg (as shown in figure 19), also can be fixedly connected on the supporting member 31 (as shown in figure 18) of fixedlying connected with upright leg.The fitting 32 of seat watts 10 is fixedlyed connected with seat board, and when people's seat following time, seat board moves down, two watts are followed the depression position with fixture is axially rotation down, and spring screws, and its elastic potential energy increases, when seat watt edge 20 touches down screw rod 25, seat watt stop motion.At this moment, to give the downward active force of seat board for making a concerted effort of seat watt reaction force and people be a pair of equilibrant force for spring force and two screw rods.When the people leaves the seat, the people disappears for the downward active force of seat board, two screw rods also disappears for the reaction force of seat watt simultaneously, at this moment, have only the elastic force of spring to act on the seat watt, equilibrium of forces is destroyed, the elastic potential energy that is stored in the spring discharges, under the effect of spring force, seat watt revolution, seat board starts thereupon.When seat watt forwards certain position to, limited by last screw rod, thus stop motion, seat board also is still in this position thereupon.

Claims (4)

1, a kind of row's chair seat board auto resilient mounting, it comprises fixture, seat watt, spring, it is characterized in that: it also comprises screw rod, time screw rod, gland, working of plastics and pearl; Described fixture has depressed part; Described watt is back that all flange, centre have the triangle supporting structure of strengthening projection, the depressed part that its round end has last screw rod containing hole and matches with fixture depression position, and its round end edge has following screw rod fastening part; Described working of plastics have can ccontaining described pearl recess; Described upper and lower screw rod can pass fixture and be fixedly connected on the upright leg of row's chair with fixture; Described watt the depressed part and the mutual closing of depressed part of fixture, and by gland, working of plastics, pearl is with the two contact, gland is fixed on two screw rods by nut; Described spring housing is on described working of plastics, and the one end is fixedly connected on the gland, and the other end places described seat watt edge.

2, row's chair seat board auto resilient mounting according to claim 1 is characterized in that: described going up on the screw rod is with non-metallic casing.

3, row's chair seat board auto resilient mounting according to claim 1 is characterized in that: on the described nut locking plate is installed.

4, row's chair seat board auto resilient mounting according to claim 1 is characterized in that: described whole device outside is covered with plastic jacket.

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