CN215292284U

CN215292284U - Unidirectional rotation device and shutter

Info

Publication number: CN215292284U
Application number: CN202120466057.6U
Authority: CN
Inventors: 邓扬礼; 徐海生
Original assignee: Foshan Hans Building Materials Technology Co ltd
Current assignee: Foshan Hans Building Materials Technology Co ltd
Priority date: 2021-03-03
Filing date: 2021-03-03
Publication date: 2021-12-24
Anticipated expiration: 2031-03-03

Abstract

The utility model discloses an unidirectional rotating device, including mount pad, guide pulley group and one-way wheel mechanism, the mount pad includes erection column and mounting panel, the erection column perpendicular to on the mounting panel, the guide pulley group is located including the cover first guide pulley and second guide pulley on the erection column, one-way wheel mechanism cover is located on the erection column, including interior wheel and foreign steamer, the foreign steamer is in can only unidirectional rotation under the restriction of interior wheel, the serving is around in on the foreign steamer, the terminal surface of foreign steamer is equipped with the slip recess and the screens boss that are circumference evenly distributed. The utility model also discloses a shutter, including above-mentioned unidirectional rotation device. Adopt the utility model discloses, can prevent effectively that the serving from being pulled back to avoid the automatic gliding of (window) curtain, simple structure is convenient for maintain moreover.

Description

Unidirectional rotation device and shutter

Technical Field

The utility model relates to a shutter technical field especially relates to an unidirectional rotating device and shutter.

Background

The existing shutter usually utilizes a sliding block to control the lifting of a curtain, and when the sliding block pulls a rolling rope to slide downwards, the curtain can be upwards rolled up under the pulling of the rolling rope, so that the rapid lifting is realized. However, the curtain has self-weight and is easy to automatically slide down under the action of gravity, so a device is needed to prevent the rolling rope from reversely moving, and the curtain is prevented from automatically sliding down under the action of gravity.

Disclosure of Invention

The technical problem to be solved by the utility model is to provide an unidirectional rotating device, which can effectively prevent the winding rope from being pulled back reversely, thereby avoiding the automatic sliding of the curtain.

In order to solve the technical problem, the utility model provides an unidirectional rotating device for prevent that the serving in the shutter from being reverse pull back, including mount pad, guide pulley group and one-way wheel mechanism, the mount pad is used for fixing the guide pulley group with one-way wheel mechanism, the guide pulley group is located one-way wheel mechanism's lateral part, one-way wheel mechanism rotationally install in on the mount pad.

The mounting seat comprises a mounting column and a mounting plate, wherein the mounting column is perpendicular to the mounting plate.

The guide wheel set comprises a first guide wheel and a second guide wheel which are sleeved on the mounting column, the winding rope is wound on the first guide wheel and the second guide wheel, and the first guide wheel and the second guide wheel are used for arranging and guiding the winding rope.

The one-way wheel mechanism is sleeved on the mounting column and comprises an inner wheel and an outer wheel, the outer wheel can only rotate in a one-way mode under the limiting effect of the inner wheel, and the winding rope is wound on the outer wheel.

The inner wheel is fixed on the mounting column and comprises a fixing hole and clamping arms, the fixing hole is located in the middle of the inner wheel, and the clamping arms are circumferentially and uniformly distributed on the outer wall of the fixing hole.

Wherein, the screens arm is followed the fixed orifices outer wall is plane heliciform ground incurvation, the end of screens arm still is equipped with the screens head, the screens arm has elasticity, can make the screens head is close to or keeps away from the fixed orifices.

The outer wheel is columnar, the end face of the outer wheel is provided with a sliding groove and a clamping boss which are uniformly distributed on the circumference, the inner wall of the sliding groove is shaped correspondingly to the clamping wall, the sliding groove is connected with the clamping boss, and one side of the clamping boss is perpendicular to the bottom face of the sliding groove.

The distance from the highest position of the clamping boss to the axis of the outer wheel is greater than the distance from the lowest position of the sliding groove to the axis of the outer wheel.

The distance from the bottom surface of the sliding groove to the axis of the outer wheel is gradually reduced.

The outer wheel is provided with a bearing mounting seat, and the bearing mounting seat is arranged in the middle of the outer wheel.

The one-way wheel mechanism further comprises a bearing, the bearing sleeve is arranged on the mounting column, and the bearing is mounted in the bearing mounting seat.

The first guide wheel is located above the one-way wheel mechanism in an inclined mode, and the second guide wheel is located below the one-way wheel mechanism in an inclined mode.

The winding rope is wound above the first guide wheel, and the winding rope is wound on one side, far away from the one-way wheel mechanism, of the second guide wheel.

Wherein, the material of the inner wheel is plastic.

The utility model also provides a shutter, include as above unidirectional rotating device.

Implement the utility model discloses, following beneficial effect has:

the utility model discloses unidirectional rotating device is equipped with one-way wheel mechanism, one-way wheel mechanism is equipped with interior wheel and foreign steamer, the serving is around on the foreign steamer, and the foreign steamer can only be rotatory towards the direction that makes the (window) curtain rise under the restriction of interior wheel, consequently when the slider stimulates the serving downwards, the serving can be pulled smoothly the (window) curtain and rises, when the (window) curtain produces the gliding trend under the action of gravity, because foreign steamer can not reverse rotation, there is stronger frictional force between serving and the foreign steamer, the serving can not be by reverse pulling, thereby avoid the automatic gliding of (window) curtain.

Drawings

FIG. 1 is a schematic structural view of the unidirectional rotating apparatus of the present invention;

FIG. 2 is a schematic structural view of the outer wheel of the present invention;

fig. 3 is a schematic structural view of the inner wheel of the present invention;

fig. 4 is a schematic structural view of the blind of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings. Only this statement, the utility model discloses the upper and lower, left and right, preceding, back, inside and outside etc. position words that appear or will appear in the text only use the utility model discloses an attached drawing is the benchmark, and it is not right the utility model discloses a concrete restriction.

Referring to fig. 1, the embodiment of the utility model discloses an unidirectional rotating device 10 for prevent that serving 4 in the shutter from being pulled back by reverse, including mount pad 3, guide pulley group 2 and one-way wheel mechanism 1, mount pad 3 is used for fixed guide pulley group 2 and one-way wheel mechanism 1, and the lateral part of one-way wheel mechanism 1 is located to guide pulley group 2, and one-way wheel mechanism 1 rotationally installs on mount pad 3. The mounting base 3 comprises a mounting column 31 and a mounting plate 32, wherein the mounting column 31 is perpendicular to the mounting plate 32. The guide wheel set 2 comprises a first guide wheel 21 and a second guide wheel 22 sleeved on the mounting column 31, the winding rope 4 is wound on the first guide wheel 21 and the second guide wheel 22, and the first guide wheel 21 and the second guide wheel 22 are used for arranging the winding rope 4 and guiding the winding rope 4. The one-way wheel mechanism 1 is sleeved on the mounting column 31, the one-way wheel mechanism 1 comprises an inner wheel 11 and an outer wheel 12, the outer wheel 12 can only rotate in one direction under the limiting effect of the inner wheel 11, the outer wheel 12 can only rotate towards the movement direction of the movement of the rolling rope 4 enabling the curtain to rise, the rolling rope 4 is wound on the outer wheel 12, when the curtain rises to enable the outer wheel 12 to rotate, the rolling rope 4 can move along with the rotation of the outer wheel 12, when the curtain automatically slides downwards under the action of gravity, the outer wheel 12 stops rotating under the effect of the inner wheel 11, the rolling rope 4 and the outer wheel 12 are balanced, and the rolling rope 4 is enabled to be stressed by the friction force generated by the first guide wheel 21 and the second guide wheel 22, so that the curtain cannot automatically slide downwards.

The embodiment of the utility model provides a beneficial effect as follows:

the embodiment of the utility model provides a be equipped with one-way wheel mechanism 1, wheel 11 and foreign steamer 12 in one-way wheel mechanism 1 is equipped with, the serving 4 is around on foreign steamer 12, and foreign steamer 12 can only be rotatory towards the direction that makes the (window) curtain rise under the restriction of interior wheel 11, consequently when slider stimulates serving 4, the serving 4 can stimulate the (window) curtain smoothly and rise, when the (window) curtain produced the gliding trend under the action of gravity, because foreign steamer 12 can not reverse rotation, there is stronger frictional force between serving 4 and the foreign steamer 12, serving 4 can not be by reverse pulling, thereby avoid the automatic gliding of (window) curtain.

Referring to fig. 3, the inner wheel 11 is fixed to the mounting post 31 so that the inner wheel 11 is stationary. The inner wheel 11 comprises fixing holes 111 and clamping arms 112, the fixing holes 111 are located in the middle of the inner wheel 11 and used for fixing the inner wheel 11 on the mounting column 31, the circumferences of the clamping arms 112 are uniformly distributed on the outer wall of the fixing holes 111, and the clamping arms 112 are preferably 2 and distributed on the inner wheel 11 at opposite positions. The retaining arm 112 is curved outward from the outer wall of the fixing hole 111 in a planar spiral shape, a retaining head 113 is further provided at the end of the retaining arm 112, and the retaining arm 112 has elasticity so that the retaining head 113 can be moved closer to or away from the fixing hole 111.

Referring to fig. 2, the outer wheel 12 is cylindrical, the end surface of the outer wheel 12 is provided with a sliding groove 121 and a locking boss 122 which are uniformly distributed circumferentially, the shape of the inner wall of the sliding groove 121 corresponds to the shape of the locking wall, the locking arm 112 can slide relatively in the sliding groove 121, the sliding groove 121 is connected with the locking boss 122, one side of the locking boss 122 is perpendicular to the bottom surface of the sliding groove 121, and the side of the locking boss 122 can block the relative movement of the locking arm 112 in the sliding groove 121. The distance from the highest position of the blocking boss 122 to the axle center of the outer wheel 12 is larger than the distance from the lowest position of the sliding groove 121 to the axle center of the outer wheel 12.

When the curtain needs to be pulled up, the rolling rope 4 drives the outer wheel 12 to rotate in the forward direction, the sliding groove 121 can slide towards the direction that the front end of the clamping boss 122 is far away from the clamping head 113, at the moment, the rear end of the clamping boss 122 is gradually close to the clamping head 113, and as the distance from the bottom surface of the sliding groove 121 to the axis of the outer wheel 12 is gradually reduced, the clamping head 113 is pressed from the position far away from the fixing hole 111 to the position close to the fixing hole 111. The outer wheel 12 continues to rotate, the position clamping head 113 continues to approach the fixing hole 111 until the position clamping head 113 meets the next position clamping boss 122, at which time the distance from the position clamping head 113 to the fixing hole 111 reaches the minimum, and then the outer wheel 12 continues to rotate, so that the position clamping head 113 reaches the next sliding groove 121, and due to the elasticity of the position clamping arm 112, the position clamping head 113 rebounds to the sliding groove 121 again, and continues to perform the next cycle.

When the curtain tends to automatically slide downwards, the rolling rope 4 drives the outer wheel 12 to rotate reversely, the sliding groove 121 rotates under the limiting action of the clamping arm 112, and finally the clamping head 113 reaches one side of the clamping boss 122, which is vertical to the bottom surface of the sliding groove 121, so that the sliding groove 121 stops and cannot rotate any more. At this time, the friction between the rolling rope 4 and the outer wheel 12 is converted from rolling friction to sliding friction, and the friction is increased, so that the curtain can not automatically slide downwards under the action of self weight.

The outer wheel 12 is provided with a bearing mount 123, and the bearing mount 123 is provided in the middle of the outer wheel 12. The one-way wheel mechanism 1 further includes a bearing 13, the bearing 13 is fitted to the mounting post 31, and the bearing 13 is mounted in the bearing mount 123, so that the outer race 12 can rotate by the bearing 13. The first guide wheel 21 is located obliquely above the one-way wheel mechanism 1, the second guide wheel 22 is located obliquely below the one-way wheel mechanism 1, the winding rope 4 is wound above the first guide wheel 21, and the winding rope 4 is wound on one side, far away from the one-way wheel mechanism 1, of the second guide wheel 22. The inner wheel 11 is made of plastic, has good elasticity and recovery capability, and is low in cost and simple to manufacture.

Referring to fig. 4, the embodiment of the present invention also discloses a blind, which includes the unidirectional rotating apparatus 10 as described above. Because set up one-way wheel mechanism 1 on the unidirectional rotation device 10, one-way wheel mechanism 1 is equipped with interior wheel 11 and foreign steamer 12, the serving 4 who is connected with (window) curtain and slider is around on foreign steamer 12, and foreign steamer 12 can only rotate towards the direction that makes the (window) curtain rise under interior wheel 11's limiting action, consequently when slider pulling serving 4, serving 4 can stimulate the (window) curtain to rise smoothly, when the (window) curtain produces the gliding trend under the action of gravity, because foreign steamer 12 can not reverse rotation, there is stronger frictional force between serving 4 and foreign steamer 12, first guide pulley 21 and the second guide pulley 22, consequently serving 4 can not be by reverse pulling, thereby avoid the automatic gliding of (window) curtain, make the embodiment of the utility model has better use experience.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations are also regarded as the protection scope of the present invention.

Claims

1. A unidirectional rotating device is used for preventing a rolling rope in a blind window from being pulled back reversely and is characterized by comprising a mounting seat, a guide wheel set and a unidirectional wheel mechanism, wherein the mounting seat is used for fixing the guide wheel set and the unidirectional wheel mechanism;

the mounting seat comprises a mounting column and a mounting plate, and the mounting column is perpendicular to the mounting plate;

the guide wheel set comprises a first guide wheel and a second guide wheel which are sleeved on the mounting column, the winding rope is wound on the first guide wheel and the second guide wheel, and the first guide wheel and the second guide wheel are used for arranging and guiding the winding rope;

2. The unidirectional rotation device of claim 1, wherein the inner wheel is fixed on the mounting post and comprises a fixing hole and a locking arm, the fixing hole is located in the middle of the inner wheel, and the locking arm is circumferentially and uniformly distributed on the outer wall of the fixing hole.

3. The unidirectional rotation device of claim 2, wherein the retaining arm is spirally bent outward from the outer wall of the fixing hole, and a retaining head is further provided at the end of the retaining arm, and the retaining arm has elasticity to enable the retaining head to approach or leave the fixing hole.

4. The unidirectional rotation device of claim 3, wherein the outer wheel is cylindrical, the end surface of the outer wheel is provided with a sliding groove and a clamping boss which are uniformly distributed in the circumference, the shape of the inner wall of the sliding groove corresponds to the shape of the clamping arm, the sliding groove is connected with the clamping boss, and one side of the clamping boss is perpendicular to the bottom surface of the sliding groove.

5. The unidirectional rotation device of claim 4, wherein the distance from the highest position of the detent boss to the axis of the outer wheel is greater than the distance from the lowest position of the sliding groove to the axis of the outer wheel;

6. The unidirectional rotation device of claim 1, wherein the outer wheel is provided with a bearing mount provided at a middle portion of the outer wheel;

7. A unidirectional rotation apparatus as claimed in claim 1, wherein the first guide wheel is located obliquely above the unidirectional wheel mechanism, and the second guide wheel is located obliquely below the unidirectional wheel mechanism.

8. A unidirectional rotation apparatus as claimed in claim 1, wherein the winding rope is wound over the first guide wheel, and the winding rope is wound on a side of the second guide wheel away from the unidirectional wheel mechanism.

9. The unidirectional rotation device of claim 1, wherein the inner wheel is made of plastic.

10. A blind comprising a unidirectional rotation device as claimed in claims 1 to 9.