CN211459737U - Mechanical damping device for curtain - Google Patents

Abstract

The utility model discloses a mechanical damping device for curtain, which comprises a damping mechanism and a shell, wherein the damping mechanism comprises an inner sleeve and an adjusting mechanism arranged in the inner sleeve, a plurality of sliding grooves are arranged on the inner circumferential surface of the inner sleeve, the sliding grooves run through the inner wall and the outer wall of the inner sleeve, the adjusting mechanism comprises a screw rod which is fixed in the inner sleeve and can be rotatably arranged relative to the inner sleeve and a nut matched with the screw rod, a plurality of convex blocks matched with the sliding grooves are arranged on the outer circumferential surface of the nut, when the screw rod is rotated, the nut can slide along the track of the sliding grooves, the inner sleeve comprises a straight part and an adjusting part, the diameter of one end of the adjusting part adjacent to the straight part is the same as that of the straight part, the diameter of the other end is smaller than that of the straight part, when the nut slides to the adjusting part, the adjusting part can, the effect of the resistance can be adjusted.

Description

Mechanical damping device for curtain

Technical Field

The utility model relates to a curtain accessory, more specifically it relates to a mechanical damping device that (window) curtain was used.

Background

The curtain is mainly used for isolating the outside and keeping the privacy of a room, and is an indispensable decoration for home decoration. The curtain is also pushed out in a horizontal pulling type and a rolling pulling lifting type according to different preferences, wherein the rolling pulling lifting type is usually provided with a damping mechanism to control the lifting speed so as to avoid over-high or over-low lifting.

However, most damping mechanisms on the target market are not adjustable, resistance cannot be adjusted according to different requirements to control the lifting speed, and only new damping mechanisms can be replaced if the damping mechanisms are changed.

SUMMERY OF THE UTILITY MODEL

To the deficiency that exists in the prior art, the utility model provides a mechanical damping device for curtain, which has the effects of simple structure and adjustable resistance.

In order to achieve the above purpose, the utility model provides a following technical scheme: a mechanical damping device for a curtain comprises a damping mechanism and a shell which is rotatable relative to the damping mechanism, wherein the damping mechanism comprises an inner sleeve which can elastically deform and an adjusting mechanism which is positioned in the inner sleeve, the shell is sleeved outside the inner sleeve and is matched with the shape of the inner sleeve, the inner sleeve comprises a plurality of sleeve rails which are annularly arranged at intervals, each sleeve rail comprises a straight portion and an adjusting portion which is obliquely and inwardly extended from one end of the straight portion, the intervals between every two adjacent sleeve rails form a sliding groove, the adjusting mechanism comprises a screw rod which is positioned in the inner sleeve and is rotatable relative to the inner sleeve and a nut which is matched with the screw rod and the screw rod, the nut is matched with the straight portion, a plurality of convex blocks which are matched and embedded with the sliding grooves are arranged on the outer peripheral surface of the nut, when the screw rod is rotated, the nut can slide along the sliding groove track, when the nut slides, the adjusting part can be pressed to deform and fit with the inner wall of the shell.

Through adopting above-mentioned technical scheme, make the nut remove on the screw rod through adjusting screw, when removing regulating part, the diameter of nut is greater than the space of regulating part for the regulating part is supported from inside to outside by the nut and is out of shape the expansion, and the regulating part after the expansion is hugged closely in the shell inner wall, makes the damping mechanism resistance grow that the shell received, when the shell rotates at curtain oscilaltion drive, the resistance grow that the shell received, thereby make curtain lift pivoted speed also change.

The utility model discloses further set up to: the screw rod is including the body of rod and the regulation tip and the fixed tip that are located body of rod both ends respectively, and the diameter of adjusting the tip is less than the body of rod diameter, fixed tip passes endotheca and shell, has seted up the fixed slot on the fixed tip outer peripheral face, still including with fixed slot complex screens piece, through the screens gomphosis of screens piece with the fixed slot, the screw rod is spacing in the endotheca and for the rotatable setting of endotheca.

Through adopting above-mentioned technical scheme, block the stiff end through the effect of screens piece and fix the screw rod in the endotheca and can not deviate from the endotheca, and the rotation of screw rod is not influenced. Meanwhile, the diameter of the rod body is larger than that of the fixed end part, and the rod body cannot be separated from one side of the fixed end part.

The utility model discloses further set up to: still including with regulation tip matched with operating module, operating module is including base, fixed connection axle sleeve on the base and be located the axle sleeve and for the rotatable pivot that sets up of axle sleeve, be connected with the torsional spring in the pivot, pivot one end and regulation tip fixed connection, the other end passes the base and exposes in the external world.

Through adopting above-mentioned technical scheme, thereby the person of facilitating the use drives the screw rod rotation through adjusting the pivot in the external world, realizes can rotating the resistance size that the screw rod adjusted damping mechanism without dismantling.

The utility model discloses further set up to: still be equipped with an annular ring seat, the one end tip fixed connection of straight portion is kept away from with the regulation part to the ring seat, still establish the spring on the screw rod including a cover, the spring is located between nut and the ring seat.

Through adopting above-mentioned technical scheme to static ring seat sets up the spring as the impetus between ring seat and nut for adjusting screw has a resistance to exist when strengthening the damping resistance and rotate, can not adjust once and avoid the nut card to die in the regulating part.

The utility model discloses further set up to: the connecting end of the rod body and the adjusting end is provided with a first limiting block, and the nut is provided with a second limiting block which is used for being abutted and limited with the first limiting block.

Through adopting above-mentioned technical scheme, the butt of stopper one and stopper two is spacing to have prevented that the nut from rotating on the body of rod and breaking away from body of rod part card and die in the endotheca.

The utility model discloses further set up to: the inner sleeve is made of elastic plastic.

By adopting the technical scheme, the inner sleeve has certain elasticity and is deformable and not easy to damage.

To sum up, the utility model discloses following beneficial effect has: can directly make the nut move on the screw rod through rotating the pivot externally adjusting screw, when removing the regulating part, the diameter of nut is greater than the space of regulating part, make the regulating part by the nut from inside to outside support the deformation expansion, the regulating part after the expansion is hugged closely in the shell inner wall, make the damping mechanism resistance grow that the shell received, when the shell rotates at curtain oscilaltion drive shell, the resistance that the shell received changes, thereby make the resistance that the curtain goes up and down to receive also change, make the speed of going up and down to rotate change.

Drawings

FIG. 1 is an exploded perspective view of the present embodiment;

FIG. 2 is an exploded perspective view of the damping mechanism of the present embodiment;

FIG. 3 is a perspective view of the adjusting mechanism of the present embodiment;

fig. 4 is a schematic perspective view of the operating assembly of the present embodiment.

Reference numerals: 1. a damping mechanism; 11. an inner sleeve; 111. a chute; 112. a straight portion; 113. an adjustment section; 114. a ring seat; 12. a spring; 13. a nut; 131. a bump; 14. a screw; 141. a rod body; 142. adjusting the end portion; 143. a fixed end portion; 144. fixing grooves; 145. a first limiting block; 15. a second limiting block; 2. a housing; 3. an operating component; 31. a base; 32. a rotating shaft; 33. a shaft sleeve; 4. a card position sheet.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The embodiment discloses a mechanical damping device for curtain, as shown in fig. 1-4, including damping mechanism 1 and rotatable shell 2 relative to damping mechanism 1, damping mechanism 1 includes elastic plastic inner sleeve 11 and the adjusting mechanism located in inner sleeve 11, but damping mechanism 1 includes elastic deformation's inner sleeve 11 and is made by elastic plastic, shell 2 cup joints outside inner sleeve 11 and with inner sleeve 11 shape looks adaptation, inner sleeve 11 includes that a plurality of interval is the set rail of annular arrangement, the set rail includes flat portion 112 and from flat portion 112 one end slope internal extension setting adjusting part 113, the interval between the adjacent set rail constitutes spout 111, adjusting mechanism includes that be located inner sleeve 11 and for the rotatable screw rod 14 that sets up of inner sleeve 11 and with screw rod 14 screw nut complex nut 13, screw nut 13 and flat portion 112 looks adaptation, be equipped with a plurality of lugs 131 with spout 111 looks adaptation gomphosis on the peripheral face of screw nut 13, when the screw 14 is rotated, the nut 13 can slide along the track of the sliding slot 111, and when the nut 13 slides to the adjusting portion 113, the adjusting portion 113 can be pressed to deform and adhere to the inner wall of the housing 2. A first limiting block 145 is arranged at the connecting end of the rod body 141 and the adjusting end 142, and a second limiting block 15 for abutting and limiting with the first limiting block 145 is arranged on the screw cap 13.

The screw 14 includes a rod body 141, an adjusting end 142 and a fixing end 143, the adjusting end 142 and the fixing end 143 are respectively located at two ends of the rod body 141, the fixing end 143 penetrates through the inner sleeve 11 and the outer shell 2, a fixing groove 144 is formed in the outer peripheral surface of the fixing end 143, the screw 14 further includes a clamping piece 4 matched with the fixing groove 144, and the screw 14 is limited in the inner sleeve 11 and can be rotatably arranged relative to the inner sleeve 11 through clamping embedding of the clamping piece 4 and the fixing groove 144.

The operating assembly 3 is matched with the adjusting end portion 142, the operating assembly 3 comprises a base 31, a shaft sleeve 33 fixedly inserted on the base 31 and a rotating shaft 32 positioned in the shaft sleeve 33 and rotatably arranged relative to the shaft sleeve 33, a torsion spring is sleeved on the rotating shaft 32, one end of the rotating shaft 32 is fixedly connected with the adjusting end portion 142, and the other end of the rotating shaft passes through the base 31 and is exposed outside.

The screw rod is further provided with an annular ring seat 114, the ring seat 114 is fixedly connected with one end part of the adjusting part 113 far away from the straight part 112, the screw rod further comprises a spring 12 sleeved on the screw rod 14, and the spring 12 is located between the screw cap 13 and the ring seat 114.

In the practical use process, the screw 14 can be directly adjusted outside by rotating the rotating shaft 32, the rotation of the screw 14 and the limit of the convex block 131 in the screw cap 13 by the chute 111 enable the screw cap 13 to be relatively limited to rotate, so that the screw 14 moves on the screw 14 along the track of the chute 111, when the adjusting part 113 moves until the adjusting part 113 moves, the diameter of the screw cap 13 is larger than the space of the adjusting part 113, the adjusting part 113 is supported, deformed and expanded by the screw cap 13 from inside to outside, the outer surface of the expanded adjusting part 113 is attached to the inner wall of the shell 2, the frictional resistance of the damping mechanism 1 on the shell 2 is increased, when the shell 2 is driven to rotate by the up-and-down lifting of the curtain, the resistance on the shell 2 is changed, and the speed of the lifting and rotating is changed. When the friction is reduced, the screw 14 is rotated reversely to move the nut 13 toward the straight portion 112 so that the adjusting portion 113 is gradually restored to reduce the frictional resistance of the adjusting portion 113 to the housing 2.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, any modification, equivalent replacement, or improvement made within the design concept of the present invention should be included within the protection scope of the present invention.

Claims (6)

1. The utility model provides a mechanical damping device that (window) curtain was used, is including damping mechanism (1) and relative to rotatable shell (2) of damping mechanism (1), its characterized in that: damping mechanism (1) including but elastic deformation's endotheca (11) and the adjustment mechanism who is located endotheca (11) the inside, shell (2) cup joint outside endotheca (11) and with endotheca (11) shape looks adaptation, endotheca (11) are the cover rail of annular range including a plurality of interval, the cover rail includes straight portion (112) and from straight portion (112) one end slope inwards extend the regulation portion (113) that set up, interval between the adjacent cover rail constitutes spout (111), adjustment mechanism is including being located endotheca (11) and for rotatable screw rod (14) that set up of endotheca (11) and with screw rod (14) screw-nut complex nut (13), screw nut (13) and straight portion (112) looks adaptation, be equipped with a plurality of lug (131) with spout (111) looks adaptation gomphosis on the outer peripheral face of screw nut (13), when the screw rod (14) is rotated, the screw cap (13) can slide along the track of the sliding groove (111), and when the screw cap (13) slides to the adjusting part (113), the adjusting part (113) can be pressed to deform and adhere to the inner wall of the shell (2).

2. The mechanical damping device for a window covering of claim 1, wherein: screw rod (14) are including the body of rod (141) and be located regulation tip (142) and fixed tip (143) at body of rod (141) both ends respectively, endotheca (11) and shell (2) are passed in fixed tip (143), have seted up fixed slot (144) on the fixed tip (143) outer peripheral face, still including with fixed slot (144) complex screens piece (4), through the screens gomphosis of screens piece (4) with fixed slot (144), screw rod (14) are spacing in endotheca (11) and for the rotatable setting of endotheca (11).

3. A mechanical damping device for a window covering as claimed in claim 2, wherein: still including with regulation tip (142) matched with operation subassembly (3), operation subassembly (3) including base (31), fixed connection axle sleeve (33) on base (31) and be located axle sleeve (33) and for pivot (32) of the rotatable setting of axle sleeve (33), be connected with the torsional spring on pivot (32), pivot (32) one end and regulation tip (142) fixed connection, the other end passes base (31) and exposes in the external world.

4. A mechanical damping device for a window covering as claimed in claim 3, wherein: still be equipped with an annular ring seat (114), one end fixed connection of straight portion (112) is kept away from with regulation portion (113) to ring seat (114), still including a cover spring (12) of establishing on screw rod (14), spring (12) are located between nut (13) and ring seat (114).

5. The mechanical damping device for a window covering of claim 4, wherein: the connecting end of the rod body (141) and the adjusting end portion (142) is provided with a first limiting block (145), and the nut (13) is provided with a second limiting block (15) which is used for being abutted and limited with the first limiting block (145).

6. The mechanical damping device for a window covering of claim 5, wherein: the inner sleeve (11) is made of elastic plastic.

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