CN213205515U

CN213205515U - Bidirectional roller pin check punching-free installation pull bead curtain accessory

Info

Publication number: CN213205515U
Application number: CN202021538722.XU
Authority: CN
Inventors: 谭宝国
Original assignee: Ningbo Senfuli Motor Co ltd
Current assignee: Ningbo Senfuli Motor Co ltd
Priority date: 2020-07-29
Filing date: 2020-07-29
Publication date: 2021-05-14
Anticipated expiration: 2030-07-29

Abstract

The utility model relates to a bidirectional roller pin non-return punching-free mounting pull bead curtain accessory, which comprises a central shaft; the adjusting ejector rod is elastically matched with the central shaft and is used for abutting against the installation wall surface; the driving component is sleeved on the central shaft; the pipe rotating wheel is sleeved on the central shaft; the backstop, this backstop cup joints on the center pin for linkage drive assembly and pipe runner, when the drive assembly drive, drive assembly drives backstop linkage pipe runner and rotates in step, when the pipe runner rotates, the reverse locking of backstop, the utility model discloses a set up the backstop and be used for linkage drive assembly and pipe runner on the center pin, utilize the reverse locking function of backstop, when people stop the pulling drive assembly, the (window) curtain stops the position at present, does not receive external force or (window) curtain self action of gravity to take place the displacement, realizes stopping promptly.

Description

Bidirectional roller pin check punching-free installation pull bead curtain accessory

Technical Field

The utility model relates to a draw pearl curtain accessory, especially relate to a two-way kingpin is contrary to exempt from to punch the installation and is drawn pearl curtain accessory.

Background

At present, draw pearl roller shutter on the market all can make the head at the tip installation of reelpipe, the structure of system is complicated, pull through drawing the pearl pulling and rotate the (window) curtain that opens and shuts in order to drive the reelpipe, the installation of making the head is loaded down with trivial details, need punch the installation with the help of appurtenance, not only destroy the wall body, influence pleasing to the eye, and the dismouting is also very inconvenient, the system head of the installation of exempting from to punch has also appeared on the market now, although the installation procedure is simple, but some defects still exist, for example, because (window) curtain self gravity or outside pulling force pulling (window) curtain cloth time, the (window) curtain can descend automatically, and can not keep at a certain.

SUMMERY OF THE UTILITY MODEL

To the present situation of the above prior art, the technical problem to be solved by the utility model is to provide a two-way kingpin contrary installation of exempting from to punch draws pearl accessory, stops when people stop the pulling and draws the pearl, and the (window) curtain stops in the position of putting at once, does not receive external force or self action of gravity to take place the displacement.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: a bidirectional roller pin non-return punching-free installation pull bead curtain accessory comprises

A central shaft;

the adjusting ejector rod is elastically matched with the central shaft and is used for abutting against the installation wall surface;

the driving component is sleeved on the central shaft;

the pipe rotating wheel is sleeved on the central shaft;

the backstop is sleeved on the central shaft and used for linking the driving assembly and the pipe rotating wheel, when the driving assembly drives, the driving assembly drives the backstop to link the pipe rotating wheel to synchronously rotate, and when the pipe rotating wheel rotates, the backstop is reversely locked.

Furthermore, the driving assembly comprises a planet carrier, a planet gear, a sun gear, an inner gear ring, pull beads and a pull bead cover, the planet carrier is sleeved on the central shaft and can rotate relatively, the planet gear is arranged on the planet carrier, the sun gear is sleeved on the central shaft and is fixedly connected with the central shaft, the sun gear, the planet gear and the inner gear ring are sequentially meshed and linked, bead pulling grooves which are arranged at equal intervals are formed in the outer circumference of the inner gear ring, the bead pulling grooves are used for embedding and connecting the pull beads, the pull bead cover is connected with the planet carrier in a closed mode and is used for covering the planet gear, the sun gear, the inner gear ring and part of the pull beads, and an opening for the pull beads to enter and exit is formed in the lower.

Furthermore, the end portion, close to the adjusting ejector rod, of the central shaft is formed with a first resisting portion, the planet carrier is formed with a second resisting portion, one end of the sun gear abuts against the first resisting portion, the other end of the sun gear abuts against the second resisting portion, the pull bead cover is provided with an avoiding opening for avoiding the first resisting portion, the second resisting portion is formed with a plurality of connecting columns which are arranged at equal intervals in the circumferential direction, and the planetary gears are arranged on the connecting columns and the intervals between the adjacent planetary gears are larger than zero.

Further, the backstop comprises an inner ring, an outer ring, a retainer and rolling needles, the inner ring is sleeved on the central shaft and cannot rotate relative to the central shaft, the outer ring is sleeved on the inner ring, the retainer is sleeved between the inner ring and the outer ring, the retainer is provided with rolling needle grooves for embedding the rolling needles, the rolling needles are arranged in an even number, the number of the rolling needle grooves is equal to that of the rolling needles, the inner side wall of the outer ring is provided with arc-shaped concave parts corresponding to the rolling needle grooves, each arc-shaped concave part comprises a first arc-shaped surface and a second arc-shaped surface, the depth of each arc-shaped concave part is gradually reduced from the middle part of the first arc-shaped surface to the direction of the second arc-shaped surface, the end part of the retainer outwards extends to be linked with the planet carrier, the outer peripheral wall of the outer ring is provided with convex ribs corresponding to the arc-shaped concave parts and used, at the moment, at least one roller pin is abutted against the second arc-shaped surface and drives the outer ring to synchronously rotate, and the outer ring drives the pipe rotating wheel to rotate; when the pipe runner links the outer ring and rotates, at least one rolling needle is extruded by the second arc-shaped surface and is tightly propped against the outer peripheral wall of the inner ring to be locked.

Furthermore, elastic pieces for limiting the needle rollers are arranged in the needle roller grooves, and the elastic pieces in the adjacent needle roller grooves are oppositely arranged on the side walls of the needle roller grooves.

Furthermore, the lower end of the inner ring is sleeved with a plane bearing, and the plane bearing is respectively in blocking connection and limiting with the lower step surface of the inner ring and the annular bottom surface of the pipe rotating wheel on the axis.

Furthermore, the end part, far away from the adjusting ejector rod, of the central shaft is provided with a gasket and a screw, the screw is in threaded connection with the central shaft, the gasket is arranged between the screw and the central shaft in a cushioning mode, the pipe rotating wheel is in blocking connection with the gasket and the second blocking part on the axis for limiting, and a groove matched with the convex edge is formed in the inner wall of the pipe rotating wheel.

Furthermore, an annular cavity is inwards concavely arranged at the center of the central shaft around the first resisting part, the adjusting ejector rod is sleeved in the annular cavity, a spring is arranged in the annular cavity and is respectively in blocking connection and limiting with the inner bottom surface of the annular cavity and the outer step surface on the adjusting ejector rod on the axis, a limiting screw is arranged at the center of the first resisting part on the central shaft, and the adjusting ejector rod is extruded and pushed by the spring in a natural state, so that the inner step surface of the adjusting ejector rod is abutted against the head of the limiting screw.

Furthermore, the adjusting ejector rod is provided with a third resisting part for abutting against the installation wall surface, and the third resisting part is provided with an anti-slip mat.

Compared with the prior art, the utility model has the advantages of: the utility model discloses a set up the backstop and be used for linkage drive assembly and pipe runner on the center pin, utilize the reverse locking function of backstop, can link pipe runner synchronous rotation when making drive assembly drive the backstop and rotate, and when the pipe runner rotates, the reverse locking of backstop, because pipe runner and the reelpipe synchronous drive who draws the pearl curtain, when people stop pulling drive assembly, the curtain stops position at the time, do not receive external force or curtain self action of gravity to take place the displacement, realize stopping promptly.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is an exploded view of the present invention;

fig. 3 is an axial cross-sectional view of the present invention;

fig. 4 is a radial cross-sectional view of the present invention;

FIG. 5 is an exploded view of the transition wheel assembly of the present invention;

as shown in the figure, 1 central shaft, 1.1 first resisting part, 1.2 annular cavity, 1.3 internal spline, 2 adjusting ejector rod, 2.1 external step surface, 2.2 internal step surface, 2.3 third resisting part, 2.4 non-slip mat, 2.5 external spline, 3 pipe runner, 3.1 groove, 3.2 convex rib, 4 planet carrier, 4.1 second resisting part, 4.2 connecting column, 5 planet gear, 6 sun gear, 7 internal gear ring, 7.1 ball pulling groove, 8 ball pulling, 9 ball pulling cover, 9.1 opening, 9.2 avoiding opening, 10 internal ring, 11 external ring, 11.1 first arc surface, 11.2 second arc surface, 11.3 convex edge, 12 retainer, 12.1 pin groove, 12.2 elastic component, 13 needle roller, 14 plane bearing, 15 gasket, 16 screw, 17 spring, 18 limit screw, 19 runner transition.

Detailed Description

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

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Meanwhile, the terms "first", "second", and the like are only used for distinguishing the names of the components, and have no primary and secondary relationship, so that the present invention is not limited.

As shown in fig. 1-4, a bidirectional roller pin check non-punching installation pull bead curtain accessory comprises a central shaft 1;

the adjusting ejector rod 2 is elastically matched with the central shaft 1 and is used for abutting against a mounting wall surface;

the driving component is sleeved on the central shaft 1;

the pipe rotating wheel 3 is sleeved on the central shaft 1;

the backstop is sleeved on the central shaft 1 and used for linking the driving assembly and the pipe rotating wheel 3, when the driving assembly drives, the driving assembly drives the backstop to link the pipe rotating wheel 3 to synchronously rotate, and when the pipe rotating wheel 3 rotates, the backstop is reversely locked.

The driving assembly comprises a planet carrier 4, a planet gear 5, a sun gear 6, an inner gear ring 7, a pull bead 8 and a pull bead cover 9, the planet carrier 4 is sleeved on the central shaft 1 and can rotate relatively, the planet gear 5 is arranged on the planet carrier 4, the sun gear 6 is sleeved on the central shaft 1 and is fixedly connected with the central shaft 1, the sun gear 6, the planet gear 5 and the inner gear ring 7 are sequentially meshed and linked, the outer circumference of the inner gear ring 7 is provided with pull bead grooves 7.1 which are arranged at equal intervals, the pull bead grooves 7.1 are used for embedding and connecting the pull bead 8, the pull bead cover 9 is connected with the planet carrier 4 in a closed mode and is used for covering the planet gear 5, the sun gear 6, the inner gear ring 7 and part of the pull bead 8, and an opening 9.1 for the pull bead 8 to enter and exit is formed below the.

The adjusting device comprises a central shaft 1, a first blocking part 1.1 is formed at the end part, close to an adjusting ejector rod 2, of the central shaft 1, a second blocking part 4.1 is formed on a planet carrier 4, one end of a sun gear 6 abuts against the first blocking part 1.1, the other end of the sun gear abuts against the second blocking part 4.1, an avoiding opening 9.2 for avoiding the first blocking part 1.1 is formed in a ball pulling cover 9, a plurality of connecting columns 4.2 which are arranged at equal intervals in the circumferential direction are formed in the second blocking part 4.1, the planet gears 5 are arranged on the connecting columns 4.2, the intervals between the adjacent planet gears 5 are larger than zero, and the adjacent planet gears 5 are not in contact with each other and are not meshed, so that the adjacent planet gears 5 cannot interfere with each other.

Wherein, the backstop comprises an inner ring 10, an outer ring 11, a retainer 12 and a roller pin 13, the inner ring 10 is sleeved on the central shaft 1 and can not rotate relative to the central shaft 1, the arrangement of the inner ring 10 can enhance the wear resistance and prolong the service life of the central shaft 1, the outer ring 11 is sleeved on the inner ring 10, the retainer 12 is sleeved between the inner ring 10 and the outer ring 11, a roller pin groove 12.1 for embedding the roller pin 13 is arranged on the retainer 12, the roller pin groove 12.1 penetrates through the inner side wall and the outer side wall of the retainer 12, the roller pins 13 are arranged in an even number, the number of the roller pin grooves 12.1 is the same as that of the roller pins 13, an arc-shaped concave part corresponding to the roller pin groove 12.1 is arranged on the inner side wall of the outer ring 11, the arc-shaped concave part comprises a first arc-shaped surface 11.1 and a second arc-shaped surface 11.2, the first arc-shaped surface 11.1 and the second arc-shaped surface 11.2 between the adjacent arc-shaped concave parts are arranged in a mirror image, the, the end part of the retainer 12 extends outwards to be linked with the planet carrier 4, the linkage can be meshing linkage of teeth and teeth, or clamping linkage of grooves and blocks, the outer peripheral wall of the outer ring 11 is provided with convex ridges 11.3 which correspond to the arc-shaped concave parts and are used for linking the pipe rotating wheel 3, when the planet carrier 4 is linked with the retainer 12 to rotate, the retainer 12 drives the roller pins 13 to rotate, at the moment, at least one roller pin 13 is propped against the second arc-shaped surface 11.2 and drives the outer ring 11 to rotate synchronously, the roller pins 13 adjacent to the roller pins are in clearance fit in a gap between the corresponding first arc-shaped surface 11.1 and the inner ring 10, and the outer ring 11 drives the pipe rotating wheel 3 to rotate; when the pipe runner 3 is in linkage with the outer ring 11 to rotate, at least one roller pin 13 is pressed by the second arc-shaped surface 11.2 to be tightly abutted against the outer peripheral wall of the inner ring 10 to be locked, so that the outer ring 11 and the inner ring 10 are prevented from rotating relatively, and the adjacent roller pins 13 are in clearance fit in a gap between the corresponding first arc-shaped surface 11.1 and the inner ring 10, so that a bidirectional non-return function is realized.

The elastic parts 12.2 used for limiting the roller pins 13 are arranged in the roller pin grooves 12.1, the elastic parts 12.2 in the adjacent roller pin grooves 12.1 are oppositely arranged on the side walls of the roller pin grooves 12.1, the elastic parts 12.2 can push the corresponding roller pins 13, so that the roller pins 13 always abut against the second arc-shaped surface 11.2 in a natural state, the backstop is always at a backstop critical point, and when the planet carrier 4 drives the retainer 12 to transmit, the roller pins 13 can quickly drive the outer ring 11 to synchronously rotate; when the outer ring 11 is in reverse transmission, the roller pin 13 can be quickly braked without rotation difference, so that the curtain is ensured to be stopped at an instant position and not to be displaced under the action of external force or the gravity of the curtain, and the instant stopping is realized.

Preferably, the elastic member 12.2 may be a spring plate or a plastic spring plate, and plays an elastic limiting role for the needle rollers 13, and the number of the needle rollers 13 is determined according to the size of the backstop, and generally, the number of the needle rollers 13 is preferably 4 or 6, so that the arrangement is convenient, the brake and linkage are not too dense, and the braking and linkage reaction is fast.

The lower end of the inner ring 10 is sleeved with a plane bearing 14, the plane bearing 14 is respectively in blocking connection with the lower step surface of the inner ring 10 and the annular bottom surface of the tube rotating wheel 3 on the axis for limiting, the tube rotating wheel 3 rotates smoothly due to the arrangement of the plane bearing 14, resistance is reduced, and a user can drive the bead pulling curtain to open and close smoothly.

The end part, far away from the adjusting ejector rod 2, of the central shaft 1 is provided with a gasket 15 and a screw 16, the screw 16 is in threaded connection with the central shaft 1, the gasket 15 is arranged between the screw 16 and the central shaft 1 in a cushioning mode, the pipe rotating wheel 3 is in spacing in a blocking mode with the gasket 15 and the second blocking part 4.1 on the axis respectively, a groove 3.1 matched with the convex edge 11.3 is formed in the inner wall of the pipe rotating wheel 3, and linkage and quick connection are facilitated.

Wherein, an annular cavity 1.2 is concavely arranged on the center of the central shaft 1 around the first resisting part 1.1, the adjusting ejector rod 2 is sleeved in the annular cavity 1.2, a spring 17 is arranged in the annular cavity 1.2, the spring 17 is respectively in blocking connection with the inner bottom surface of the annular cavity 1.2 and the outer step surface 2.1 on the adjusting ejector rod 2 on the axis for limiting, a limit screw 18 is arranged on the central shaft 1 at the center of the first resisting part 1.1, under the natural state, the spring 17 extrudes and pushes the adjusting ejector rod 2, the inner step surface 2.2 of the adjusting ejector rod 2 is abutted against the head of the limit screw 18, the limit screw 18 is arranged to prevent the adjusting ejector rod 2 from being separated from the annular cavity 1.2, when external force is applied to the adjusting ejector rod 2, the adjusting ejector rod 2 can reciprocate in the annular cavity 1.2, thereby adjusting the installation length of the bead curtain on the spline, wherein, an inner 1.3 is arranged in the annular cavity 1.2 near the port part, the adjusting ejector rod 2 is provided with an external spline 2.5 matched with the internal spline 1.3, and the central shaft 1 and the adjusting ejector rod 2 are prevented from rotating relatively through the engagement of the internal spline 1.3 and the external spline 2.5, so that the installation and the use of the bead pulling curtain are more stable.

Wherein, be equipped with the third department of resist 2.3 that is used for the butt installation wall on adjusting ejector pin 2, be equipped with slipmat 2.4 on this third department of resist 2.3, prevent to skid, the installation is more reliable, and stability is better.

When in use, the accessory of the utility model is connected with the rolling tube of the bead-pulling curtain as the driving end, the planet carrier 4 is driven to rotate by pulling the bead-pulling 8, the planet carrier 4 is linked with the retainer 12 to rotate, the retainer 12 is linked with the roller pin 13, at least one roller pin 13 is propped against the second arc surface 11.2 and drives the outer ring 11 to rotate synchronously, the outer ring 11 is linked with the tube rotating wheel 3 to rotate synchronously, the tube rotating wheel 3 is linked with the rolling tube to rotate to realize the opening and closing of the bead-pulling curtain, when stopping to pull and draw pearl 8, draw the pearl curtain to stop at the instant position, when drawing the pearl curtain and receiving external force or self action of gravity roll reelpipe, reelpipe reverse drive pipe runner 3, pipe runner 3 reverse drive outer lane 11, at this moment, at least one kingpin 13 receives the extrusion of second arcwall face 11.2 and supports tightly and the locking with the periphery wall of inner circle 10, prevents outer lane 11 and inner circle 10 relative rotation to guarantee to draw the pearl curtain to stop at the instant position accurately, realize stopping promptly.

Additionally, when the utility model discloses a when the accessory needs the reelpipe of the bigger pipe diameter of adaptation, as shown in fig. 5, can cup joint a transition runner 19 again on pipe runner 3, be equipped with the protruding muscle 3.2 of a plurality of on this pipe runner 3's the periphery wall for linkage reelpipe or transition runner 19.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes in the embodiments and modifications thereof may be made, and equivalents may be substituted for elements thereof; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A bidirectional roller pin non-return punching-free mounting pull bead curtain accessory is characterized by comprising a central shaft;

the driving component is sleeved on the central shaft;

the pipe rotating wheel is sleeved on the central shaft;

2. The fitting of claim 1, wherein the driving assembly comprises a planet carrier, a planetary gear, a sun gear, an inner gear ring, pull beads and a pull bead cover, the planet carrier is sleeved on the central shaft and can rotate relatively, the planetary gear is arranged on the planet carrier, the sun gear is sleeved on the central shaft and is fixedly connected with the central shaft, the sun gear, the planetary gear and the inner gear ring are sequentially meshed and linked, the outer circumference of the inner gear ring is provided with pull bead grooves which are arranged at equal intervals and are used for embedding the pull beads, the pull bead cover is connected with the closed planet carrier and is used for covering the planetary gear, the sun gear, the inner gear ring and part of the pull beads, and an opening for the pull beads to enter and exit is formed below the pull bead cover.

3. The accessory for the bidirectional roller pin non-return non-punching installation pull bead curtain as claimed in claim 2, wherein a first abutting portion is formed at an end portion of the central shaft close to the adjusting ejector rod, a second abutting portion is formed on the planet carrier, one end of the sun gear abuts against the first abutting portion, the other end of the sun gear abuts against the second abutting portion, an avoiding port for avoiding the first abutting portion is formed in the pull bead cover, a plurality of connecting columns are formed in the second abutting portion and are arranged in a circumferentially equidistant manner, and the planetary gears are arranged on the connecting columns and the distance between adjacent planetary gears is greater than zero.

4. The fitting of claim 3, wherein the check device comprises an inner ring, an outer ring, a retainer and a plurality of needles, the inner ring is sleeved on the central shaft and cannot rotate relative to the central shaft, the outer ring is sleeved on the inner ring, the retainer is sleeved between the inner ring and the outer ring, the retainer is provided with needle grooves for embedding the needles, the needles are arranged in an even number, the number of the needle grooves is the same as that of the needles, the inner side wall of the outer ring is provided with arc-shaped recesses corresponding to the needle grooves, the arc-shaped recesses comprise a first arc-shaped surface and a second arc-shaped surface, the depth of the arc-shaped recesses decreases from the middle of the first arc-shaped surface to the direction of the second arc-shaped surface, the end portions of the retainer extend outwards to be linked with the planet carrier, the outer peripheral wall of the outer ring is provided with convex ribs corresponding to the arc-shaped recesses and used for linking the wheels, when the planet carrier is linked with the retainer to rotate, the retainer drives the roller pins to rotate, at the moment, at least one roller pin abuts against the second arc-shaped surface and drives the outer ring to synchronously rotate, and the outer ring drives the pipe rotating wheel to rotate; when the pipe runner links the outer ring and rotates, at least one rolling needle is extruded by the second arc-shaped surface and is tightly propped against the outer peripheral wall of the inner ring to be locked.

5. The fitting of claim 4, wherein the needle groove has a resilient member for retaining the needle, and the resilient members of adjacent needle grooves are disposed opposite each other on the sidewall of the needle groove.

6. The fitting of claim 4, wherein the lower end of the inner ring is sleeved with a flat bearing, and the flat bearing is axially retained by the lower step surface of the inner ring and the annular bottom surface of the tube runner.

7. The fitting of claim 6, wherein the central shaft is provided with a gasket and a screw at an end portion thereof remote from the adjusting rod, the screw is in threaded connection with the central shaft, the gasket is disposed between the screw and the central shaft, the pipe runner is in axial contact with the gasket and the second stopping portion respectively for limiting, and the inner wall of the pipe runner is provided with a groove for engaging with the convex edge.

8. The fitting of claim 4, wherein the central shaft is provided with an annular cavity recessed inward around the center of the first abutting portion, the adjusting rod is sleeved in the annular cavity, a spring is arranged in the annular cavity and is in axial abutment with the inner bottom surface of the annular cavity and the outer step surface of the adjusting rod respectively, the central shaft is provided with a limit screw at the center of the first abutting portion, and the spring naturally pushes the adjusting rod, and the inner step surface of the adjusting rod abuts against the head of the limit screw.

9. The fitting of claim 8, wherein the adjusting rod has a third stop portion for abutting against a wall surface, and the third stop portion has a non-slip mat.