CN2146922Y

CN2146922Y - Curtain winder

Info

Publication number: CN2146922Y
Application number: CN 92241686
Authority: CN
Inventors: 安竹秋; 安宗民; 宋永祥
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-11-23
Filing date: 1992-11-23
Publication date: 1993-11-24
Anticipated expiration: 2002-11-23

Abstract

The utility model relates to a reeling curtain winder, which is composed of a casing, a core barrel, a unit head. The unit head is composed of a shaft, a core bar, a ratchet wheel, a jack, close packing coil springs of rectangular section, a protective cover, etc. The utility model has the advantages that rolling curtains don't have dead points and can move freely, curtains can be stopped at any length position, positioning function is provided, the lap winding of springs is avoided, torque force is adjusted conveniently, and faults can not occur when curtains are rolled.

Description

Curtain winder

The utility model relates to a kind of device of hanging curtain, particularly the Scroll window shade arrangement.

The torsion spring of the screen-roller that present Zhengzhou City produces is that loose cross section is circular helical spring, it is contained in outside the mandrel, together be through in the stomidium of wood spool, mandrel other end end face is a square, its device has following shortcoming: because the stomidium inner wall coarse of wood spool partly contacts coarse hole inwall when the helical spring pine is risen, it is inconsistent that the helical spring pine is risen, cause rotatory force inhomogeneous, occur rising on the door curtain made of cloth oblique angle; Rising when twining the helical spring pine for circular in the helical spring cross section, produces lap wound again, breaks down during roller shutter, and make the helical spring life-span short.The dead point appears in its ratchet and spring structure in the time of can causing roller shutter, roll up on the door curtain made of cloth can not continue or leave behind; And can not be spacing.Mandrel square end face is adjusted the spring torsion inconvenience.

The purpose of this utility model provides a kind of new screen-roller, overcomes above-mentioned shortcoming and defect.

The purpose of this utility model is achieved in that

Cylindrical outer casing 3 is arranged; be fixed on the outer hanger 2 of shell; be fixed on the support 6 at outer casing inner wall two ends; be fixed on unit head 5 on the support 6 by the two ends of the axostylus axostyle 10 that has turning handle 9; be fixed on the thin cylinder of unit head 5 outsides and have and the axle a flat shape can insert the core tube 4 that cord meets the crack; it is characterized in that: its unit head has core bar 13 coaxial with axostylus axostyle 10 and that fuse; be fixed on the ratchet 16 on the core bar 13; cooperate with ratchet 16 very heavy 15; very heavy 15 axle sleeve 11 is housed; be contained in the axostylus axostyle 10 of axle sleeve 11 endoporus; be contained in the core tube 4 outside the axle sleeve 11; one end is fixed on the solid matter helical spring 14 that the other end on the axle sleeve 11 is contained in the square-section in the elongated slot 19 on the core bar 13; be contained in the protective sleeve 12 of inner wall smooth of the restricted solid matter helical spring spring coil overinflation of axle sleeve 11 1 side solid matter helical springs outsides.

The disk that eccentric orfice is arranged 7 that guarantees to meet the crack size is equipped with in centre in the core tube 4.Shell can be circular cylinder, oval tube, rectangular cylinder, and end cap 1 can be equipped with in two ends.Two, three roller blind device also can be housed in the shell.

The utility model has the advantages that: roller shutter does not have the dead point, and activity has limit function freely, and curtain can stop any in extension position, can prevent the spring lap wound, can not break down during roller shutter, and it is convenient to adjust torsion.

Fig. 1 is the screen-roller structural representation

Fig. 2 is the structural representation that screen-roller removes decapsidate

Fig. 3 is the B-B section of Fig. 2 and the schematic diagram that the wafer architecture of eccentric orfice is arranged

Fig. 4 is the schematic diagram of screen-roller power head structure

Fig. 5 is D-D section and the very heavy structural representation of ratchet of Fig. 4

Fig. 6 is a kind of fixing rack structure schematic diagram of screen-roller unit head

Fig. 7 is screen-roller cross-section structure and the scheme of installation that two roller blind devices are housed

Fig. 8 is screen-roller cross-section structure and the scheme of installation that a roller blind device is housed

Below in conjunction with the several embodiment of description of drawings:

Screen-roller has cylindrical housing 3, be fixed on the outer hanger 2 of shell, be fixed on the outer casing inner wall two ends support 6, by the two ends of the axostylus axostyle 10 that has turning handle 9 be fixed on unit head 5 on the support 6, be fixed on the thin cylinder of unit head 5 outsides and have with the flat shape of axle can insert the core tube 4 that cord meets the crack, the disk that eccentric orfice is arranged 7 that the crack size is met in assurance is equipped with in the centre in the core tube 4.Its unit head has core bar 13 coaxial with axostylus axostyle 10 and that fuse; be fixed on the ratchet 16 on the core bar 13; cooperate with ratchet 16 very heavy 15; very heavy 15 axle sleeve 11 is housed; be contained in the axostylus axostyle 10 of axle sleeve endoporus; be contained in the core tube 4 outside the axle sleeve 11; one end is fixed on the solid matter helical spring 14 that the other end on the axle sleeve 11 is contained in the square-section in the elongated slot 19 on the core bar 13; be contained in the protective sleeve 12 of inner wall smooth of the restricted solid matter helical spring spring coil overinflation of axle sleeve 11 1 side solid matter helical springs outsides.

Its action is such: the axostylus axostyle 10 that is fixed with ratchet 16 is equipped with very heavy 15 axle sleeve 11 and is fixed on axle sleeve 11 outer core tubes 4 and rotate by ratchet 16 and very heavy 15 directions that allow only generally speaking with core bar 13 transfixions.When cord is drop-down, core tube 4 is pressed the direction of ratchet and very heavy permission and is rotated, one end is fixed on the solid matter helical spring 14 that the other end on the axle sleeve 11 is contained in the square-section in the elongated slot 19 on the core bar 13 and is reversed, when when any cord extension position is stopped, core tube 4 ratchet 16, very heavy 15 and helical spring twisting force under stop.When needing to roll up on the cord, as long as drop-down gently cord makes very heavy 15 to forward lower position to, very heavy 15 open under the effect of gravity.Unclamp cord this moment, and core tube 4 is at helical spring twisting force roller shutter cloth next time.The centrifugal force of rotation makes very heavy 15 to open always, has rolled up up to cord.

Turning handle 9 can be regulated the helical spring torsion of solid matter, makes roller shutter reach best condition.

Device has following characteristics:

The protective sleeve 12 of the inner wall smooth of the solid matter helical spring 14 spring coil overinflations of a unit head 5 restricted square-sections, solid matter helical spring and protective sleeve and core bar 13 have fit dimension, the deformation between protective sleeve and core bar of restriction solid matter helical spring.When solid matter helical spring deformation elongation and shortening, the helical spring end of solid matter can move in the elongated slot on the core bar 13 19.Improved that not have protective sleeve and cross section be that round screw thread spring pine partly contacts coarse hole inwall when rising, it is inconsistent that the helical spring pine is risen, and causes rotatory force inhomogeneous, occurs rising on the door curtain made of cloth oblique angle; Rising when twining the helical spring pine for circular in the helical spring cross section, produces lap wound and shortcoming that roller shutter lost efficacy again.

The b position-limiting action: put on the curtain fast and roll up since the restriction of the protected cover 12 of solid matter helical spring too pine rise, an and braking action avoids cord too to roll, roller shutter is put in place can be stopped.

C prevents dead point effect: solid matter helical spring 14 twines when full at core bar 13, and core tube 4 is moving, and will very heavy 15 be contained in the lower position of axle sleeve 11 this moment, can reach to prevent the dead point generation.

Shell can be circular cylinder, oval tube, rectangular cylinder, and end cap 1 can be equipped with in two ends.

The roller blind device of two or three also can be housed in the shell.

This screen-roller can not have shell 3 yet, directly is contained on the window frame and uses.

Claims

1; a kind of screen-roller has cylindrical outer casing 3; be fixed on the outer hanger 2 of shell; be fixed on the support 6 at outer casing inner wall two ends; be fixed on unit head 5 on the support 6 by the two ends of the axostylus axostyle 10 that has turning handle 9; be fixed on the thin cylinder of unit head 5 outsides and have and the axle a flat shape can insert the core tube 4 that cord meets the crack; it is characterized in that: its unit head has core bar 13 coaxial with axostylus axostyle 10 and that fuse; be fixed on the ratchet 16 on the core bar 13; cooperate with ratchet 16 very heavy 15; very heavy 15 axle sleeve 11 is housed; be contained in the axostylus axostyle 10 of axle sleeve 11 endoporus; be contained in the core tube 4 outside the axle sleeve 11; one end is fixed on the solid matter helical spring 14 that the other end on the axle sleeve 11 is contained in the square-section in the elongated slot 19 on the core bar 13; be contained in the protective sleeve 12 of inner wall smooth of the restricted solid matter helical spring spring coil overinflation of axle sleeve 11 1 side solid matter helical springs outsides.

2, screen-roller according to claim 1 is characterized in that: the disk that eccentric orfice is arranged 7 that guarantees to meet the crack size is equipped with in the centre in the core tube 4.

3, according to claim 1,2 described screen-rollers, it is characterized in that: shell can be circular cylinder, oval tube, rectangular cylinder, and end cap 1 can be equipped with in two ends.

4, screen-roller according to claim 3 is characterized in that: two, three roller blind device also can be housed in the shell.