CN2375215Y

CN2375215Y - Curtain bead chain wheel

Info

Publication number: CN2375215Y
Application number: CN 99207203
Authority: CN
Inventors: 陶秀枝
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-04-05
Filing date: 1999-04-05
Publication date: 2000-04-26
Anticipated expiration: 2009-04-05

Abstract

The utility model relates to a bead chain wheel for curtains, which is composed of a bead shaft, a bead chain seat, a sleeve barrel, a fixed block, etc., wherein, the bead chain seat is sheathed on the bead shaft, the sleeve barrel is sheathed on the bead chain seat, the fixed block is fixed on one end of the bead shaft to limit the sleeve barrel, and one end of the bead chain seat is provided with a ring body. The outer ring surface of the ring body is provided with a plurality of cambered concave bead slots to match with a bead body on which a bead chain is wound and sheathed, vertical baffle plates which are in a stagger state are shaped on the inner and the outer lateral edges of the bead slots, and baffle edges are shaped on the front and the rear sides of the baffle plates. When the bead chain is pulled, the bead chain seat is interlocked by the bead chain to rotate to enable a bead chain bodies arranged in the bead slots of the bead chain seat to be disengaged from the bead slots smoothly, so beads can not be clamped, and noise can not be sent out.

Description

A kind of curtain pelletron wheel

The utility model relates to a kind of curtain pelletron wheel, and You Zhiyi can smooth and easy pulling pelletron and can not be produced the pelletron wheel construction of noise.

The pelletron formula Window curtain structure of commonly using as shown in Figure 4, by end cap 5, pearl shaft-cup 6, pearl axle 7, member groups such as pelletron 8 and fixture block 9 are established and are formed, wherein 6 of end cap 5 and pearl shaft-cups are formed with a fastening position 51, this fastening position 51 is the center left-right symmetry with the pivot 52 of fixture block 9, each side also has stop section 511 and following stop section 512 on one, this fixture block 9 is located at a wherein side at fastening position 51, and can be in last stop section 511 and 512 deflections in stop section down of this side, and support face 91 with first and second, 92 respectively with this two stop section 511,512 form to card, first of this fixture block 9 support face 91 and second and support face 92 and lay respectively at the both sides of its center line and be symmetry shape again, when fixture block 9 is located at a side at this fastening position 511, first support face 91 and support card and go up stop section 511 with it, second support face 92 and support card stop section 512 down with it, the mode that this fixture block 9 can revolve partially, change the opposite side of being located at this fastening position 51, and second support face 92 and support card and go up stop section 511 with it in this side, first support face 91 and support card stop section 512 down with it, detailed its structure and the start form of grinding, its side that implements must quite exert oneself when pelletron 8 spurs must make pelletron 8 rotate smoothly as can be known, and in rotating process, because of pelletron 8 continues collision end cap 5 and pearl shaft-cup 6, the noise that causes generation is quite big.

The purpose of this utility model provides a kind of curtain pelletron wheel, and it can smooth and easy pulling pelletron, and can not produce noise.

For reaching above-mentioned purpose, the utility model provides a kind of curtain pelletron wheel, by the pearl axle, bead chain base, member such as sleeve and fixed block group is established and is formed, wherein bead chain base is placed in outside the pearl axle, and sleeve is placed in outside the bead chain base again, fixed block then is fixed in pearl axle one end and limits sleeve, and bead chain base is established a ring body in an end, the ring body of bead chain base is established in outer ring surface and is made the pearl body of the recessed pearl groove cooperation of some arcs around cover one pelletron, the interior lateral border moulding of these pearl grooves is vertical and be the baffle plate of staggered attitude, side forms the retaining edge before and after the baffle plate, makes the baffle plate inner edge be the form of an approximate arc indent.

The baffle plate inner edge of aforementioned pearl groove also can be the slope guide plate shape.

The pearl axle is in the axostylus axostyle of the inboard moulding one sheathed torque spring of ring plate, and in ring plate ring edge appropriate location moulding one catch.

The arc length of aforementioned catch is slightly less than half cycle.

The ring body of aforementioned pelletron is established a C matrix in interior ring edge toward the other end, and establishes an arc sheet in corresponding C matrix opening part.

Aforementioned sleeve is the cylindrical shell of a hollow state, and it is in the fit portion that inner edge close end place's moulding one can supply pearl axle axostylus axostyle to place.

After adopting said structure, when the pulling pelletron, the rotation of pelletron interlock bead chain base makes the pelletron pearl body that is placed in bead chain base pearl groove can break away from the pearl groove swimmingly, and can not block pearl and make a noise.

Below in conjunction with drawings and Examples, the utility model is further described.

Fig. 1 is a three-dimensional exploded view of the present utility model;

Fig. 2 is a combination schematic diagram of the present utility model;

Fig. 3 is an enforcement illustration of the present utility model;

Fig. 4 is for originally commonly using the three-dimensional exploded view of product.

See also Fig. 1, the utility model is established by member groups such as pearl axle 1, bead chain base 2, sleeve 3 and fixed blocks 4 and is formed, wherein: pearl axle 1 is in the axostylus axostyle 12 of ring plate 11 inboard centre moulding one hollow forms, this axostylus axostyle 12 is the hierarchy type form for tool three different bars footpaths, it overlaps a torque spring 13 in center rod section place, two ends of torque spring 13 are pulled and are converted into protrusion section 131, and in the catch 14 of the suitable radian of ring plate 11 ring edge appropriate location moulding one tools;

Bead chain base 2 is in the suitable ring body 21 of establishing of an end, ring body 21 outer ring surfaces are established and are made the recessed pearl groove 211 of some arcs, the interior lateral border moulding of these pearl grooves 211 is vertical and be staggered baffle plate 212, baffle plate 212 front and back sides form the retaining edge 213 that is oblique surface shape or cancave cambered surface, make baffle plate 212 inner edges be the form of an approximate arc indent, and the ring body 21 of this tool pearl groove 211 and cooperation are around cover one pelletron 22, and ring body 21 is held to extend toward other in interior ring edge and is established a C matrix 23, and be connected with an arc sheet 24 in ring body 21 corresponding C shape sheet 23 opening parts, make that 23 of arc sheet 24 and C shape sheets are suitable to be formed two and wear groove 25;

Sleeve 3 is the cylindrical shell of a hollow form, and its internal diameter is to be set as the external diameter that is slightly larger than bead chain base 2C matrix 23, and this cylindrical shell is in inner edge close end place and the moulding one fit portion 31 that can place for the thin bar section of pearl axle 1 axostylus axostyle 12, and in axial protuberantia one rib 32 of inwall;

Fixed block 4 is the ring-type block of a central tool perforation 41;

When making up by above-mentioned member, as shown in Figure 2, what pearl axle 1 axostylus axostyle 12 of sheathed torque spring 13 made that torque spring 13 protrusion sections 131 pass bead chain base 2 wears groove 25, pearl axle 1 axostylus axostyle 12 is placed in the bead chain base 2C matrix 23, order is stopped by pearl axle 1 catch 14 in advance around the pelletron 22 that is placed in bead chain base 2 pearl grooves 211, and tool one restriction, again sleeve 3 is sleeved on the C matrix 23 of bead chain base 2, make the thin bar section of pearl axle 1 axostylus axostyle 12 place the fit portion 31 of sleeve 3, at last fixed block 4 is cooperated a screw 42 to make screw 42 be fixed at the internal face of the thin bar section of pearl axle 1 axostylus axostyle 12 with the self tapping kenel.

When start is implemented in the said structure combination, as shown in Figure 3, suitable power pulled down pelletron 22 with appropriateness, because the more than half approximately volumes of pearl body of pelletron 22 sink in the pearl groove 211, when whole piece pelletron 22 is hung around bead chain base 2, respectively sink into the pearl body of the pelletron 22 in the pearl groove 211, when the pearl groove 211 at its place does not turn to lower half (being that pearl groove 211 is not downward-sloping as yet) as yet, the pearl body of pelletron 22 can not deviate from pearl groove 211, the arc length that adds the catch 14 of pearl axle 1 also is slightly less than half cycle, so even pelletron 22 is firmly pullled, its pearl body is effectively being spurred in the upper half stroke of bead chain base 2, deviate from by pearl groove 211 introskips, and because of in the upper half stroke, the pearl body that a plurality of pearl groove 211 contents fall into pelletron 22 is arranged simultaneously, pelletron 22 can be certain, interlock bead chain base 2 rotations stably, and go to when downward-sloping when pearl groove 211, can make the pelletron 22 pearl bodies that are placed in bead chain base 2 pearl grooves 211 originally break away from bead chain base 2 pearl grooves 211 in regular turn, wherein, because of the arc of these pearl grooves 211 recessed be slope guide plate shape or the planar retaining edge 213 of concave arc, and the design form that cooperates pearl body size, the pearl body that makes pelletron 22 slippage swimmingly goes out pearl groove 211, can not block pearl, and also noiselessness generation in the process of pulling pelletron 22.

Claims

1, a kind of curtain pelletron wheel, it is characterized in that: it is established by member groups such as pearl axle, bead chain base, sleeve and fixed blocks and forms, wherein bead chain base is placed in outside the pearl axle, sleeve is placed in outside the bead chain base again, fixed block is fixed in pearl axle one end, and bead chain base establishes a ring body in an end, and this ring body is established the recessed pearl groove of arc in outer ring surface and cooperated pearl body around cover one pelletron, the interior lateral border moulding of these pearl grooves is vertical and be the baffle plate of staggered attitude, and side forms the retaining edge before and after the baffle plate.

2, as claim 1 described a kind of curtain pelletron wheel, it is characterized in that: the baffle plate inner edge of aforementioned pearl groove is the slope guide plate shape.

3, as claim 1 described a kind of curtain pelletron wheel, it is characterized in that: the inboard moulding one sheathed torque spring axostylus axostyle of pearl axle one end, and in ring plate ring edge moulding one catch.

4, as claim 3 described a kind of curtain pelletron wheels, it is characterized in that: the arc length of aforementioned catch is less than half cycle.

5, as claim 1 described a kind of curtain pelletron wheel, it is characterized in that: the ring body interior ring edge of aforementioned pelletron is established a C matrix toward the other end, and establishes an arc sheet in corresponding C matrix opening part.

6, as claim 1 described a kind of curtain pelletron wheel, it is characterized in that: aforementioned sleeve is a hollow state cylindrical shell, and it is in inner edge close end place's moulding one fit portion, and pearl axle axostylus axostyle places wherein.