CN2545346Y

CN2545346Y - Torsional spring sound-damping roll-up door

Info

Publication number: CN2545346Y
Application number: CN 02209535
Authority: CN
Inventors: 刘训明
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-04-10
Filing date: 2002-04-10
Publication date: 2003-04-16
Anticipated expiration: 2012-04-10

Abstract

A torsion spring muffle rolling door includes a reel, a spool, a stent, a shutter and a guide groove. Both ends of the spool are fixed on the two stents on both sides, two reels are rotarily connected with two ends of the spool, the upper end of the shutter is connected with the outer margin of the reel and two side edges of the shutter is arranged in the two guide grooves on both sides. A connecting rod is connected with the two reels and the spool is sleeved with two torsion springs with opposite helical directions, the outer ends of which are connected with the two reels respectively and the inner ends of which are connected with the spool. The torsion spring muffle rolling door has the advantages that the shutter can be wholly rolled back with enough rollback elastic force generated by the sufficient deformation room of the spiral torsion spring, that the muffling band at the edge of the shutter avoids noise, prevents wearing and prolongs the service life and that the structure is simple and practical.

Description

Torsion spring noise reduction rolling door

Technical field

The utility model relates to a kind of torsion spring noise reduction rolling door.

Background technology

Therefore characteristics such as it is good that rolling door has a safety, simple in structure, easy to use are used widely.The backrush mechanism of existing rolling door adopts the Mainspring type disc spring, and this disc spring is because there is the little problem in deformation space in its structural limitations, in order to strengthen its elastic force, must strengthen its hardness, cause easy fracture, then backrush elastic force is not enough inadequately as if hardness, automatically the whole roller shutters of rollback.In addition, directly sliding friction between the both sides of roller shutter and the guide groove, friction noise is very big when the lifting roller shutter, and wearing and tearing are also serious, shortened application life.

Summary of the invention

The purpose of this utility model just provides a kind of backrush good springiness, the roller shutter wearing and tearing are very little, does not have the alloy steel torsion spring noise reduction rolling door of noise.

Technical solutions of the utility model are: comprise spool, reel, support, roller shutter, guide groove, the spool two ends are fixed on the support of both sides, two reels are rotatably connected on the spool two ends, the roller shutter upper end is connected described reel outer rim, the dual-side of roller shutter is positioned at the guide groove of both sides, is connected with connecting rod between two reels, is with two opposite helical torsion springs of rotation direction on described spool, its outer end is connected with two reels respectively, and the inner is connected with spool.

The noise reduction band that also comprises the both side surface that invests described roller shutter edge.

Described noise reduction band is telescopic braid over braid.

Described roller shutter is made by alloy steel.

The utility model advantage is: utilize the deformation space of helical torsion spring abundance to produce enough backrush elastic force, can make the whole rollbacks of roller shutter; The noise reduction band at roller shutter edge has been avoided noise, has also prevented from wearing and tearing to have prolonged application life.Simple in structure, practical.

Description of drawings

Fig. 1 is an agent structure schematic diagram of the present utility model;

Fig. 2 is the A-A sectional drawing of Fig. 1.

Fig. 3 is the B-B sectional drawing of Fig. 1

The specific embodiment

Referring to Fig. 1-Fig. 3, the utility model comprises spool 1, reel 2, support 3, roller shutter 4, guide groove 5, the two ends of spool 1 are fixed on the support 3 of both sides, two reels 2 are rotatably connected on the two ends of spool 1, roller shutter 4 upper ends are connected the outer rim of described reel 2, and the dual-side of roller shutter 4 is positioned at the guide groove 5 of both sides, have connecting rod 8 to connect between two reels 2, so that two reels 2 can link and play reinforcement effect, guide groove 5 is also as the doorframe of rolling door.Be with two opposite helical torsion springs 6 of rotation direction on described spool 1, its outer end is connected with two reels 2 respectively, and the inner is connected with spool 1.Roller shutter 4 is twisting under the effect of torsion spring 6 on the reel 2, and when leaving behind roller shutter 4, the outer end of reel 2 rotations and drive torsion spring 6 is also along with rotation, and torsion spring 6 is tightened.When decontroling roller shutter 4, rollback under the effect of the restoring force of torsion spring 6.

Both side surface at the edge of described roller shutter 4 is provided with noise reduction band 7.Noise reduction band 7 is telescopic braid over braid.Can be by bonding or cross-under on the two sides of roller shutter 4, to avoid the friction between roller shutter 4 and the guide groove 5.This roller shutter 4 is made by alloy steel.

General rolling door two reels 2 and between the outside also have a roller shutter cover, do not draw in the accompanying drawings.

Claims

1, a kind of torsion spring noise reduction rolling door, comprise spool, reel, support, roller shutter, guide groove, the spool two ends are fixed on the support of both sides, two reels are rotatably connected on the spool two ends, and the roller shutter upper end is connected described reel outer rim, and the dual-side of roller shutter is positioned at the guide groove of both sides, between two reels, be connected with connecting rod, it is characterized in that: be with two opposite helical torsion springs of rotation direction on described spool, its outer end is connected with two reels respectively, and the inner is connected with spool.

2, torsion spring noise reduction rolling door according to claim 1 is characterized in that: the noise reduction band that also comprises the both side surface that invests described roller shutter edge.

3, torsion spring noise reduction rolling door according to claim 2, it is characterized in that: described noise reduction band is telescopic braid over braid.

4, according to claim 1,2 or 3 described torsion spring noise reduction rolling door, it is characterized in that: described roller shutter is made by alloy steel.