CN201265317Y

CN201265317Y - Lower pulley apparatus suitable for folding door

Info

Publication number: CN201265317Y
Application number: CNU2008203018755U
Authority: CN
Inventors: 詹惇昇
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-08-20
Filing date: 2008-08-20
Publication date: 2009-07-01
Anticipated expiration: 2018-08-20

Abstract

A lower pulley device suitable for a folding door is arranged in a lower track of a cabinet and comprises a fixed seat and a plurality of pulley components, wherein the fixed seat is provided with a top plate, two side plates and a plurality of pivots, and the pivots are vertically arranged on the top plate; the pulley components are respectively pivoted on the pivots and can horizontally rotate relative to the top plate, each pulley component comprises a bearing, a metal pulley and a muting washer, wherein the bearing is sleeved on the corresponding pivot, the metal pulley is circularly sleeved on the bearing and horizontally rotates relative to the pivots, a circle of annular grooves is formed around the metal pulley, and the muting washer is circular, has elasticity and is wound on an annular groove. The utility model can smoothly slide in the lower track without noise and cannot generate high-pitched noise, and in addition, the pulley can be smoothly butted with a wheel axle without excessive wear.

Description

Be applicable to the lower sheave device of folding door

Technical field

The utility model relates to a kind of pulley gear, especially refer to a kind of lower sheave device that is applicable to folding door, it can smooth and easy and voicelessly slide in the lower railway and can not produce sharp-pointed noise, in addition can smooth and easy the linking between pulley and the wheel shaft and the excessive wear situation can not take place.

Background technology

Folding door often is applied to furniture such as cabinet, is available for users to open folding door with horizontal push-pull fashion, and folding door is the two door sheets that are pivoted mutually, and when folding door was unlocked, two sheets were pushed into a side of cabinet and are the folding state.

Crosswise fixed gets on the right track and a lower railway among cabinet, get on the right track with lower railway on slidably be provided with a pair of top sheave assembly and a pair of lower sheave assembly respectively, each top sheave assembly and lower sheave assembly interfix with corresponding door sheet respectively, order door sheet can be opened the action with folding when push on the limit to the left or to the right whereby.

Existing lower sheave assembly has a holder and several pulleys, and this holder fixes with the relative sheet of answering the door, and pulley then sees through a wheel shaft and is hubbed on the holder and rolling or slip in getting on the right track.Yet pulley is a plastic part, and when sliding in lower railway, easy and lower railway friction takes place and produces sharp-pointed stridulation, and in the course of time, pulley and wheel shaft also can cause the damage of lower sheave assembly in the generation gap because of mutual the wearing and tearing.

The utility model content

Technical problem to be solved in the utility model is, because the shortcoming that the pulley of the lower sheave assembly of existing folding door friction takes place and produce sharp-pointed noise and damage easily with lower railway easily, a kind of can smooth and easy and voicelessly slide in the lower railway is provided and can not produce sharp-pointed noise, can smooth and easyly be connected the lower sheave device that is applicable to folding door that the excessive wear situation can not take place yet between pulley and the wheel shaft in addition.

For solving the problems of the technologies described above, the technical scheme that the utility model adopted is: a kind of lower sheave device that is applicable to folding door, and it is arranged in the lower railway of a cabinet, and it includes:

One holder has a top board, two side plates and several pivots, and these several pivots are arranged on this top board with vertical mode; And

Several pulley assemblies, be hubbed on the pivot respectively, top board horizontally rotates relatively, each pulley assembly includes a bearing, a metallic sheave and a quiet packing ring, this bearing is set on the corresponding pivot, this metallic sheave be ring-type and be set on the bearing and relatively pivot horizontally rotate, around metallic sheave, be formed with a circle ring-shaped groove, this quiet packing ring is that annular has elasticity, around being arranged on the ring-shaped groove.

Aforementioned bearings is a ball bearing.

The external diameter of aforementioned quiet packing ring is greater than the external diameter of metallic sheave.

Aforementioned quiet packing ring is with the rubber manufacturing.

Be formed with at least one holddown groove respectively on each side plate of aforementioned fixation seat, a holddown groove is provided with a screw rod therein, is equipped with a door lever that is positioned at the holder outside on screw rod, and this lever has elasticity.

Compared with prior art, the beneficial effect that the utility model had is: the bearing of the utility model between pivot and metallic sheave can make the smooth and easy rotation of metallic sheave, reduce the friction between pivot and the metallic sheave, therefore metallic sheave can slide in lower railway or roll swimmingly, in addition, quiet packing ring has elasticity and contacts the lower railway inner surface, avoid metallic sheave directly to contact with lower railway, therefore the sharp-pointed noise that can avoid intermetallic friction and cause also can be avoided the metallic sheave wearing and tearing.

Description of drawings

Fig. 1 is that the utility model is arranged at the enforcement state diagram in the cabinet.

Fig. 2 is the stereo appearance figure of the utility model lower sheave device and following hinge.

Fig. 3 is the three-dimensional partial exploded view of the utility model lower sheave device and following hinge.

Fig. 4 is that the solid of the utility model in lower railway implemented state diagram.

Fig. 5 is the end-view of the utility model hookup 4.

Label declaration:

1 lower sheave device, 10 holders

11 holddown grooves, 15 top boards

16 screw rods, 17 pivots

18 door shield bars, 20 pulley assemblies

21 bearings, 22 metallic sheaves

223 ring-shaped grooves, 23 quiet packing rings

80 times hinge 90 cabinets

93 sheet 931 pivot devices

95 97 lower railway that get on the right track

The specific embodiment

Please refer to Fig. 1 to Fig. 3, the utility model is applicable to that the lower sheave device 1 of accordion door is slidably to be arranged in the cabinet 90, and this cabinet 90 includes two sheets 93, get on the right track 95, one lower railway 97 and two top sheave devices.Two sheets 93 see through two pivot devices 931 and articulate mutually.Upper and lower track (95,97) is horizontally installed in the cabinet 90.Lower sheave device 1 slidably is arranged in the lower railway 97 and sees through respectively that hinge 80 is fixed on the sheet 93 of answering the door relatively.

Please with further reference to Fig. 4 and Fig. 5, each lower sheave device 1 includes: a holder 10 and several pulley assemblies 20.

This holder 10 has a top board 15, two side plates and several pivots 17, and this counts pivot 17 is to be arranged on this top board 15 with vertical mode.In addition, be formed with at least one holddown groove 11 on each side plate of holder 10 respectively, a holddown groove 11 is provided with a screw rod 16 therein, is equipped with a door lever 18 that is positioned at holder 10 outsides on screw rod 16, and this lever 18 has elasticity so that can be against corresponding door sheet 93.

This counts pulley assembly 20 is to be hubbed at respectively on the pivot 17, and top board 15 horizontally rotates relatively, and each pulley assembly 20 includes a bearing 21, a metallic sheave 22 and a quiet packing ring 23.

This bearing 21 is set on the corresponding pivot 17, can be ball bearing.

This metallic sheave 22 is a ring-type, can the NC machined into, and be set on the bearing 21 and relatively pivot 17 horizontally rotate, around metallic sheave 22, be formed with a circle ring-shaped groove 223.

This quiet packing ring 23 is for annular has elasticity, around being arranged on the ring-shaped groove 223.The external diameter of quiet packing ring 23 can be greater than the external diameter of metallic sheave 22 so that can contact with the inner surface of lower railway 97 really.Quiet packing ring 23 can the rubber manufacturing.

By above-mentioned technological means, bearing 21 between pivot 17 and metallic sheave 22 can make metallic sheave 22 smooth and easy rotations, reduce the friction between pivot 17 and the metallic sheave 22, therefore metallic sheave 22 can slide in lower railway 97 or roll swimmingly, in addition, quiet packing ring 23 has elasticity and contacts the lower railway inner surface, avoids metallic sheave 22 directly to contact with lower railway 97, therefore the sharp-pointed noise that can avoid intermetallic friction and cause also can be avoided metallic sheave 22 wearing and tearing.

Claims

[claim 1] a kind of lower sheave device that is applicable to folding door, it is arranged in the lower railway of a cabinet, it is characterized in that including:

One holder has a top board, two side plates and several pivots, and these several pivots are arranged on this top board with vertical mode; And

Several pulley assemblies, be hubbed on the pivot respectively, top board horizontally rotates relatively, each pulley assembly includes a bearing, a metallic sheave and a quiet packing ring, this bearing is set on the corresponding pivot, this metallic sheave be ring-type and be set on the bearing and relatively pivot horizontally rotate, around metallic sheave, be formed with a circle ring-shaped groove, this quiet packing ring is that annular has elasticity, around being arranged on the ring-shaped groove.
[claim 2] is characterized in that according to the described lower sheave device that is applicable to folding door of claim 1 this bearing is a ball bearing.
[claim 3] is characterized in that according to the described lower sheave device that is applicable to folding door of claim 2 external diameter of this quiet packing ring is greater than the external diameter of this metallic sheave.
[claim 4] is characterized in that according to the described lower sheave device that is applicable to folding door of claim 3 this quiet packing ring is with the rubber manufacturing.
[claim 5] is according to each described lower sheave device that is applicable to folding door in the claim 1 to 4, it is characterized in that, be formed with at least one holddown groove respectively on each side plate of this holder, a holddown groove is provided with a screw rod therein, be equipped with a door lever that is positioned at the holder outside on screw rod, this lever has elasticity.