CN2495197Y - Seat part - Google Patents

Abstract

The utility model relates to a pallet for rotary chairs, which comprises a base, a transverse rod, a connecting rod, a movable seat, a brake sheet and a regulating device; the brake sheet connects a connecting block and the movable seat; besides, a hexangular flat head bolt, two ends of which are alternately overlapped and movably go through and are connected with the regulating device, is coiled with a pressing spring thereon; and two end tops of the hexangular flat head bolt are connected with washers; the roller on the sliding wheel base is connected with the washers in rolling way; tightening or losing the brake sheet and rotating the sliding wheel base can make the seat and the chair back rotary or still; the sliding wheel is connected with the washers in rolling way, so that the hand feeling of operation is labor-saving and comfortable, and the maintenances can be reduced and the service life also can be prolonged.

Description

A kind of pallet

The utility model relates to the supporting parts of swivel chair, specifically is to connect a kind of pallet of the seat support and the chair back.

At present, be used in the supporting existing pallet of swivel chair, its governor motion is a handle pulling stage clip top pressure spring seat, the locking of regulating brake(-holder) block with loosen, the seat support and the chair back of swivel chair are swung within the specific limits, though structure is simple, the problem of being brought is stage clip and spring base plane contact, the pressure that is subjected to is big, the pulling spring base that operating grip is frequent makes its life-span short, the repair rate height, consequent another problem is the feel effort, and swing is big.

To this, the utility model provides a kind of rapid operation, comfortable feel, and nonabradable swivel chair pallet its objective is to overcoming the deficiency that existing pallet exists.

In order to realize the purpose of this utility model, propose meter and adopt following technical scheme: it comprises cross bar, base, contiguous block, adjusting rod, brake(-holder) block, sliding seat and adjusting device; The base front end is connected with cross bar and contiguous block, in the middle of contiguous block, be equipped with the Taper Pipe that connects air pressure rod, the rear end of base is connected with sliding seat, be equipped with the regulating sleeve that connects swivel chair back of the body pipe on the sliding seat, the upper and lower relevant position of the one side of the assembly of two brake(-holder) blocks is shaped on two boss, their each end connects contiguous block and sliding seat respectively, in addition the hexagonal flat head bolt in the alternate stacked and activity cross-under adjusting device in two ends.Described adjusting device, by adjustment seat, the hexagonal flat head bolt, stage clip, pulley base, adjusting rod and pad are formed.Stage clip around the home on the hexagonal flat head bolt, stage clip two roof pressure pad, two pads be connected with adjustment seat bottom surface roof pressure respectively with pulley base on roller roll and be connected.The movable dress of roller is by being at pulley base on arc one end of semi-convex garden, and the pulley base other end links to each other with hand third, and pulley base connects adjustment seat by bearing pin, rotates around bearing pin.

When the technique effect that the utility model specifically presents is the operation adjusting device, by roller roof pressure gasket compression stage clip, regulate locking or loosen the brake sheet, the transmission pressure that rolls makes feel laborsaving, comfortable, pulley base, stage clip, hexagonal flat head bolt and pad are assemblied in the adjustment seat, compact conformation firmly makes adjusting device smooth operation, long service life.

Below, details are as follows to technology contents of the present utility model in conjunction with the embodiments with reference to the accompanying drawings.

Fig. 1 is the utility model topology view.

Fig. 2 is the brake(-holder) block component view.

By illustrated in figures 1 and 2: base 22 head ends of the present utility model are welded with cross bar 1, and corresponding two holes, two ends are connected and fixed on the seat support by bolt on cross bar 1.Base 22 front ends riveted joints has contiguous block 2, is welded with conical pipe 3, pivot bush unit air pressure rod, the whole pallet of fixed support at the middle position of contiguous block 2.The adjusting rod 21 that is N shape is by being welded on the welded tube 20 of base 22 sides, and by 19 location of the torsion spring on adjusting rod 21 around the home, 21 1 of N shape adjusting rods are positioned at the central roof pressure of conical pipe 3 and air pressure rod, the other end connects handle 12, and it is that supporting-point rotates with welded tube 20 that swing handle 12 makes N shape adjusting rod 21, and one that compresses air pressure rod moves up and down, air pressure rod is risen or decline, thereby drive the lifting of chair, adjusting rod 21 stops swinging, by torsion spring 19 location.The end of base 22 flexibly connects sliding seat 8 by rivet 11, the center fixed of sliding seat 8 connects regulating sleeve 7, regulating sleeve 7 is connected with back of the body ligament, by regulating compressing of regulating sleeve 7 and back of the body pipe at the latch segment 9 of regulating sleeve 7 two sides by hex bolts 6 or unclamping, carry on the back upper and lower lifting of pipe and location thereof thereby regulate.Be provided with each an end movable axis downlink connection piece 2 and sliding seat 8 of adjusting device and brake(-holder) block 5, two brake(-holder) blocks 5 in the middle part of base 22, the alternate stacked activity cross-under in other two ends is on the hexagon-headed bolt 17 of adjusting device.The side plate welding of periphery in the middle of the cylindrical adjustment seat 13 of described adjusting device and base 22, the mounting hole 25 that hexagonal flat head bolt 17 1 ends in adjustment seat 13 inner chambers pass pad 4a and two brake(-holder) blocks, 5 assemblies is connected in another side plate of base 22, stage clip 18 around the home on hexagonal flat head bolt 17, stage clip 18 1 crowns are pressed in and the contacted pad 4a of adjustment seat (13) bottom surface inwall, the head of other end roof pressure hexagonal flat head bolt 17, thereby compress with pulley base 14 on the pad 4b that joins of roller 16, be semi-convex circular-arc pulley base 14 and flexibly connect adjustment seat 13 by bearing pin 15, the other end connects handle 10, when pulley base 14 is in original state, roller 16 on the pulley base 14 is got along with pad 4b and is pressed closer pressure condition, pad 4b compression press spring, stage clip 18 is in the pretension state, make the assembly of brake(-holder) block 5 be in the boss 24 on the face separately and the distance of another chip module face apical grafting mutually, thus the location chair back and seat support; Swing handle, driving pulley base 14 rotates around bearing pin 15, the pulley base 14 that is semi-convex garden arc moves downwards, be movably connected in two rollers 16 between the arc of semi-convex garden by bearing pin, with the increase of semi-convex garden arc radius, compression press spring 18 forces to move in the hexagonal flat head bolt 17 to increase the alternate distance between stacked of two brake(-holder) blocks, 5 assemblies, under external force, the chair back and seat support can be done corresponding rotation.On the pivot pin 11 that connects base 22 and sliding seat 8 left and right torsion spring 23 is arranged around the home, the certain power of the chair back is given at brake(-holder) block 5 connecting shafts and base 22 base plates 5 in two roof pressure respectively, increases comfort level, in no external force effect, the chair back is rotated can recover initial position.

Claims (3)

1, a kind of pallet, it includes base, cross bar, contiguous block, sliding seat, adjusting rod, brake(-holder) block and adjusting device, contiguous block is equipped with the Taper Pipe that connects air pressure rod, be equipped with the regulating sleeve that connects back of the body pipe on the sliding seat, each end of two brake(-holder) blocks connects contiguous block and sliding seat respectively, and hexagonal flat head bolt is repeatedly worn in the alternate stack in two ends in addition, and stage clip is around the home on the hexagonal flat head bolt, stage clip two roof pressure pad, it is characterized in that two pads (4a) and (4b) be connected with adjustment seat (13) bottom surface roof pressure respectively with pulley base (14) on roller (16) roll and to be connected, roller (16) activity is installed in pulley base (14) and is on arc one end of semi-convex garden, pulley base (14) is by bearing pin (15) connection adjustment seat (13).

2, a kind of pallet according to claim 1 is characterized in that adjusting rod (21) flexibly connects on the outer panel of base (22), and torsion spring (19) is wound on the adjusting rod (21), and outer panel is pressed on a crown, and a pressure is on adjusting rod (21).

3, a kind of pallet according to claim 1 is characterized in that the upper and lower relevant position of one side of brake(-holder) block (5) assembly is shaped on two boss (24).

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