TWM604599U - Curtain and curtain limiting device - Google Patents

Abstract

A curtain includes a curtain rail, a middle rail, a lower rail, a curtain body, a first transmission module, a second transmission module, and a curtain limiting device. The curtain body is arranged between the curtain rail and the lower rail. The first transmission module and the second transmission module are respectively arranged in the curtain track, and the first transmission module and the second transmission module are respectively used for controlling the rising or falling of the middle rail and the lower rail. The curtain limiting device is arranged in the curtain track, and the curtain limiting device is connected between the first transmission module and the second transmission module, and the curtain limiting device is used to limit and control the lifting stroke of the curtain. In addition, a curtain limiting device has also been proposed.

Description

Curtain and curtain limit device

This creation is about a curtain and curtain limiting device, especially a curtain and curtain limiting device applied to two-stage curtains.

Curtains are a common household equipment. Generally speaking, in addition to the effect of blocking the sunlight, curtains are also provided for the purpose of shielding to provide necessary privacy in the house in time, or even provide decoration. There are many types of curtains, such as Venetian Blinds, Roman Shades or Cellular Shades. The venetian blinds are made up of strips of materials that look like blades. Through the drawstring, the angle of the curtains is changed and the intensity of daylighting is controlled. The Roman blinds are provided with a plurality of cross bars at appropriate distances between the curtains. These cross bars increase the weight of the Roman blinds, thereby preventing the curtains from fluttering due to wind. The honeycomb curtain, also known as the organ curtain, is a newly developed structure aimed at energy-saving curtains in recent years. The unique hollow honeycomb is designed in the curtain structure to make it have the effect of heat insulation and heat preservation, which can maintain the indoor temperature and reduce the external environment. The indoor temperature changes drastically.

In curtains that are opened and closed by pulling upwards and downwards, a two-segment curtain is gradually derived. This two-segment curtain usually has independently controlled upper and lower curtains. When users want to prevent outsiders from peeping into the room, they also want the upper window When the light can penetrate, the user can adjust the area of the upper curtain and the lower curtain to cover the window according to the needs to meet the user's needs.

Generally speaking, curtains are equipped with drawstrings. Through the operation of the drawstrings, the curtains can be pulled up or down to close or unfold the curtains. In the two-stage curtain, the first transmission module and the second transmission module can individually control the lifting strokes of the middle rail and the lower rail, so as to achieve the purpose of independent control of the upper curtain and the lower curtain.

When the upper curtain and the lower curtain are operated separately to control the opening and closing, the rope is prone to knotting under certain conditions. For example, when the upper curtain and the lower curtain are both in the unfolded state, the lower rail is raised to close the lower curtain by controlling the second transmission module. If the lower curtain is completely closed, continue to control the second transmission module , And then let the lower rail continue to rise, causing the lower rail to contact or even push to the middle rail, and then force the middle rail and the upper curtain to collapse upward, that is, the middle rail is not controlled by the first transmission module that controls the middle rail. The ascent stroke of the rail. Since the rope in the first transmission module that controls the middle rail does not have any winding at this time, the rope pulling the middle rail is in a relaxed state. The next time the user rolls the reel in the first transmission module , The slack rope will form an irregular and random winding on the reel, and then overlap and knot. What is more, the reel cannot be rolled, which increases the probability of the transmission module jamming. It can be seen from this that the existing two-stage curtains have the problems of overlapping and entanglement of the cords during the process of unfolding or folding the curtains. These problems can cause the curtains to malfunction or even cause safety concerns. The two-stage curtain of the prior art still cannot meet the needs of users.

Therefore, how to improve and provide a curtain and curtain limiting device to alleviate the problems encountered above will be a problem to be solved in the industry.

This creation provides a curtain and curtain limit device. The curtain limit device is used to limit and control the curtain lifting stroke, which can not only prevent the cord on the winding device from overlapping and entanglement during the process of controlling the curtain to expand or collapse. .

An embodiment of the present invention provides a curtain including a curtain rail, a middle rail, a lower rail, a curtain body, a first transmission module and a second transmission module, and a curtain limiting device. The middle rail is arranged between the curtain rail and the lower rail. The curtain body is arranged between the curtain rail and the lower rail. The curtain body includes an upper curtain and a lower curtain, wherein the upper curtain is connected between the curtain rail and the middle rail, and the lower curtain is connected between the middle rail and the lower rail. The first transmission module and the second transmission module are respectively arranged in the curtain track. The first transmission module controls the rise or fall of the middle rail, and the second transmission module controls the rise or fall of the lower rail. The first transmission module and the The second transmission modules respectively include a speed change device, a transmission rod and a pair of winding devices. The transmission rod is connected to the speed change device and the pair of winding devices. The speed change device of the first drive module and the speed change device of the second drive module are respectively Correspondingly connect a draw rope, the pair of winding devices of the first transmission module and the pair of winding devices of the second transmission module are respectively used to connect a rope, and one end of each rope of the pair of winding devices of the first transmission module Connected to the middle rail, and one end of each rope of the pair of winding devices of the second transmission module is connected to the lower rail. The curtain limiting device is arranged in the curtain track, and the curtain limiting device is connected between the first transmission module and the second transmission module, and the first transmission module, the second transmission module and the curtain limiting device are located On an axis within the curtain track. The curtain limiting device includes a first rotating part, a second rotating part and a fixed seat body. The first rotating member is linked to the transmission rod in the first transmission module. The first rotating member includes a first head and a first coupling part. The first coupling part is connected to the first head. The surface of the first coupling part has An external thread. The first rotating piece is rotatably arranged in the second rotating piece, and the second rotating piece is linked to the transmission rod in the second transmission module. The first rotating piece and the second rotating piece are a male-female matching structure . The second rotating member includes a second head, a second coupling part, and a screw hole. The second coupling part is connected to the second head. The first head faces the second head. The external thread can be matched with an internal thread in the screw hole, so that the first coupling part can move in the screw hole through a rotating manner, so that there is a first rotation stroke between the first rotating part and the second rotating part, And the surface of the second joining part has an external thread. The fixed seat body is rotatably arranged outside the second rotating part. The second rotating part and the fixed seat system are another male-female matching structure. The fixed seat body includes a through hole for the second rotating part. The two joints are pierced through, and the external thread on the surface of the second joint can be matched with the internal thread in the perforation, so that the second joint can move in the perforation through rotation, so that the fixed base and the second rotating part There is a second rotation stroke therebetween.

Another embodiment of the present invention provides a curtain limiting device. The curtain limit device is used for a curtain. The curtain includes a curtain track, a lower rail, a curtain body, a first transmission module and a second transmission module, and a curtain limiting device. The middle rail is arranged between the curtain rail and the lower rail, and the curtain body is arranged between the curtain rail and the lower rail. The curtain body includes an upper curtain and a lower curtain. The upper curtain is connected between the curtain rail and the middle rail, and the lower curtain is connected to Between the middle rail and the lower rail, the first transmission module and the second transmission module are respectively arranged in the curtain track, the first transmission module controls the rise or fall of the middle rail, and the second transmission module controls the rise or fall of the lower rail , The first transmission module and the second transmission module respectively include a transmission device, a transmission rod and a pair of winding devices, the transmission rod is connected to the transmission device and the pair of winding devices, the transmission device of the first transmission module and the second The speed changing device of the transmission module is respectively connected to a rope, the pair of winding devices of the first transmission module and the pair of winding devices of the second transmission module are respectively used to connect a rope, the pair of the first transmission module One end of each rope of the winding device is connected to the middle rail, one end of each rope of the winding device of the second transmission module is connected to the lower rail, the curtain limiting device is arranged in the curtain track, and the curtain limiting device is connected to the first Between a transmission module and a second transmission module, the first transmission module, the second transmission module and the curtain limiting device are located on an axis in the curtain track. The curtain limiting device includes a first rotating part, a second rotating part and a fixed seat body. The first rotating member is used to link the transmission rod in the first transmission module. The first rotating member includes a first head and a first coupling part. The first coupling part is connected to the first head. The surface has an external thread. The first rotating piece is rotatably arranged in the second rotating piece, and the second rotating piece is used to link the transmission rod in the second transmission module. The first rotating piece and the second rotating piece are in a male and female cooperation In the structure, the second rotating member includes a second head, a second coupling part and a screw hole, the second coupling part is connected to the second head, the first head faces the second head, and the first coupling part The external thread on the surface can be matched with an internal thread in the screw hole, so that the first coupling part can move in the screw hole through rotation, so that there is a first rotating part between the first rotating part and the second rotating part. The rotation stroke, and the surface of the second coupling part has an external thread. The fixed seat body is rotatably arranged outside the second rotating part. The second rotating part and the fixed seat system are another male-female matching structure. The fixed seat body includes a through hole for the second rotating part. The two joints are pierced through, and the external thread on the surface of the second joint can be matched with the internal thread in the perforation, so that the second joint can move in the perforation through rotation, so that the fixed base and the second rotating part There is a second rotation stroke therebetween.

In an embodiment of the present creation, the first rotating member, the second rotating member and the fixed seat body are respectively located on the axis.

In an embodiment of the present creation, the end face of the first head is opposite to the end face of the second head, and the size of the end face of the first head is equal to the size of the end face of the second head.

In an embodiment of the present creation, the first rotating member and the second rotating member each further include a stopper portion, and the stopper portions are locked to each other to restrict the mutual rotation of the first rotating member and the second rotating member .

In an embodiment of the present invention, the second rotating member and the fixed base respectively further include a stop part, and the stop parts are fixed to each other to restrict the rotation of the second rotating part and the fixed base.

Based on the above, the present creation can limit and control the lifting strokes of the middle rail and the lower rail of the curtain by using the curtain limit device to prevent overlapping and entanglement of the cords in the cord winding device.

In order to make this creation more obvious and easy to understand, the following specific examples are given in conjunction with the accompanying drawings for detailed descriptions as follows.

The specific implementation of this creation will be further described below with reference to the drawings and embodiments. The following embodiments are only used to explain the technical solution of this creation more clearly, and cannot limit the protection scope of this creation.

It should be noted that, in the description of each embodiment, the descriptions of so-called "left", "right", etc. are only described in the direction of diagrams, and are not used to limit the creation. The so-called "first", "second", and "third" are used to describe different elements, and these elements are not limited by such predicates. In addition, for the convenience and clarity of the description, the thickness or size of each element in the drawings is expressed in an exaggerated or omitted or general manner for the understanding and reading of those familiar with the art, and the size of each element is not It is completely its actual size and is not used to limit the conditions for the implementation of this creation. Therefore, it has no technical significance. Any modification of structure, change in proportion or size adjustment does not affect the creation of this creation. The effect and the achievable purpose should still fall within the scope of the technical content disclosed in this creation.

Figure 1 is a schematic diagram of an embodiment of the curtain created. Please refer to Figure 1. The curtain 50 of this embodiment at least includes a curtain body 51, a curtain rail 52, a middle rail 54, a lower rail 55, a first transmission module 56, a second transmission module 58 and a curtain limiting device 100. The curtain body 51 is arranged between the curtain rail 52 and the lower rail 55. The curtain body 51 includes an upper curtain 51A and a lower curtain 51B. The upper curtain 51A is connected between the curtain rail 52 and the middle rail 54, and the lower curtain 51B is connected to the middle rail. 54 and the lower rail 55. The curtain 50 of this embodiment is not limited to any type. The curtain body 51 can be adjusted to a venetian blind, Roman curtain, honeycomb curtain or any type of curtain body according to the actual product. Of course, the material of the curtain body 51 can also be adjusted according to actual needs. In this embodiment, the material of the curtain body 51 is not limited.

Figure 2 is a schematic diagram of the partial components in the curtain track of Figure 1. Figure 3 is a schematic diagram of the winding device and the curtain limiting device of Figure 2 separated from the curtain track. It should be noted that since the winding devices 565 and 566 in Figure 1 are similar components, and the winding devices 585 and 586 are similar components, in order to enlarge the drawing for ease of explanation, the winding devices 565 and 565 are omitted in Figures 2 and 3, respectively. Winding device 585. Please refer to Figure 1 to Figure 3. In this embodiment, the curtain rail 52 is provided with a first transmission module 56 for controlling the middle rail 54 to rise in the ascending direction L2 or descend in the descending direction L1, and to control the lower rail 55 to ascend or descend in the ascending direction L2 The second transmission module 58 with L1 descending, wherein the pull rope 12 on the left is connected to the first transmission module 56 and controls the middle rail 54 to have a middle rail movement stroke D1, which is from the bottom side of the curtain rail 52 to The distance from the top side of the middle rail 54 is the movable stroke of the middle rail 54, that is, the range where the upper curtain 51A can be rolled; the right pull rope 14 is connected to the second transmission module 58 and controls the lower rail 55 to have a lower rail The moving stroke D2 and the bottom rail moving stroke D2 are the distance from the bottom side of the middle rail 54 to the top side of the bottom rail 55, that is, the movable stroke of the bottom rail 55, that is, the rolling range of the lower curtain 51B.

In this embodiment, the first transmission module 56 and the second transmission module 58 are arranged on both sides of the accommodating groove 522 of the curtain rail 52 and are located on the same axis L. The first transmission module 56 includes a transmission device 562, a transmission rod 564, and a pair of winding devices 565, 566. The transmission rod 564 respectively penetrates the winding devices 566, 565 and the transmission device 562. The rod body 5641 at one end of the transmission rod 564 is linked In the speed change device 562 and the winding devices 566 and 565, the rod 5642 at the other end of the transmission rod 564 is linked to the winding device 566 and the curtain limiting device 100. In the same way, the second transmission module 58 includes a transmission device 582, a transmission rod 584, and winding devices 585 and 586. The transmission rod 584 respectively penetrates the winding devices 585, 586 and the transmission device 582, and the rod body 5841 at one end of the transmission rod 584 Linked to the speed change device 582 and the winding devices 586 and 585, the rod 5842 at the other end of the transmission rod 584 is linked to the winding device 586 and the curtain limiting device 100.

In one embodiment, referring to Figures 2 and 3, the winding device 566 may include a winding base 5661 and fixing members 5662, 5664 on both sides of the winding base 5661. The winding base 5661 may be fixed to the accommodating curtain rail 52. In the groove 522, the fixing parts 5662, 5664 are respectively arranged on both sides of the winding base 5661, the winding device 566 is accommodated in the winding base 5661, and the fixing parts 5662, 5664 are clamped on both sides of the winding device 566. The rod 5641 at one end of the transmission rod 564 passes through the fixing member 5662 and the winding device 566, and the rod 5642 at the other end of the transmission rod 564 passes through the winding device 566 and the fixing member 5664. In the same way, the wire winding device 565 can be configured according to the components in the wire winding device 566, that is, the wire winding device 565 also has a wire winding seat body and a fixing member provided on both sides thereof. However, the winding base 5661 and the fixing members 5662, 5664 of the fixed winding device 566 are only a specific implementation aspect, and the present invention does not limit the components of the fixed winding device 566. In addition, in this embodiment, the transmission device 562 for linking the transmission rod 564 with the rope 12 is provided in this embodiment. For example, a transmission gear set is provided in the transmission device 562 to convert the distance pulled by the rope 12 into the appropriate transmission rod 564. Rotating speed. The winding devices 565 and 566 are used for winding or unwinding (retracting) the corresponding cords 569 and 568, wherein one end of the cords 569 and 568 is connected to the middle rail 54.

Similarly, in an embodiment, the winding device 586 may include a winding base 5861 and fixing pieces 5862, 5864 provided on both sides of the winding base 5861. The winding base 5861 may be fixed in the receiving groove 522 of the curtain rail 52, and the fixing piece 5862 and 5864 are respectively arranged on both sides of the winding base 5661, the winding device 586 is accommodated in the winding base 5861, and the fixing parts 5862 and 5864 are clamped on both sides of the winding device 586. The rod 5841 at one end of the transmission rod 584 passes through the fixing member 5862 and the winding device 586, and the rod 5842 at the other end of the transmission rod 584 passes through the winding device 586 and the fixing member 5864. In the same way, the wire winding device 585 can be configured according to the components in the wire winding device 586, that is, the wire winding device 585 also has a wire winding seat body and fixing members provided on both sides thereof. Of course, the winding base 5861 and the fixing members 5862, 5864 of the fixed winding device 586 are only a specific implementation aspect, and the present invention does not limit the components of the fixed winding device 586. In addition, in this embodiment, a speed change device 582 for linking the cable 14 with the transmission rod is provided. For example, a speed change gear set is provided in the speed change device 582 to convert the distance pulled by the cable 14 into an appropriate rotation speed of the corresponding transmission rod 584. The winding devices 586 and 585 are used for winding or unwinding (retracting) the corresponding cords 588 and 589, and one end of the cords 588 and 589 is connected to the lower rail 55.

In this embodiment, the ropes 569, 568 of the first transmission module 56 are extended downward by the corresponding coiling devices 565, 566 to suspend the middle rail 54, and the ropes 589, 588 of the second transmission module 58 The corresponding winding devices 585 and 586 extend downward to suspend the lower rail 55. For example, when any one of the ropes 12, 14 in the first transmission module 56 and the second transmission module 58 drives the corresponding transmission rods 564, 584 to rotate through the transmission devices 562, 582, the transmission device The action of 562 and the transmission rod 564 can make the winding devices 565 and 566 rotate synchronously to retract the corresponding ropes 569 and 568 to drive the middle rail 54 in the two-stage curtain body 51 to rise and fall, so that the upper curtain 51A can open and close ; Similarly, by the action of the speed change device 582 and the transmission rod 584, the winding devices 585, 586 can be rotated synchronously to retract the corresponding ropes 589, 588 to drive the lower rail 55 in the two-stage curtain body 51 Lift up and down to open and close the lower curtain 51B. Through the above-mentioned operation method, the basic function of controlling the opening and closing of the upper curtain 51A and the lower curtain 51B of the two-stage curtain body 51 respectively is achieved.

In this embodiment, the curtain limiting device 100 is connected between the first transmission module 56 and the second transmission module 58. For details, please refer to Figures 4 and 5. The curtain limiting device 100 includes a first rotating part 110, a second rotating part 120 and a fixed base 130. The first rotating part 110 is rotatably disposed inside the second rotating part 120, and the fixed base 130 is rotatably disposed outside the second rotating part 120. The rod body 5642 of the transmission rod 564 in the first transmission module 56 is connected to the hole 116 of the first rotating member 110, so that the transmission rod 564 is linked to the first rotating member 110. The rod body 5842 of the transmission rod 584 in the second transmission module 58 is connected to the hole 129 of the second rotating part 120 so that the transmission rod 584 is linked to the second rotating part 120.

In this embodiment, the first transmission module 56, the second transmission module 58, the first rotating member 110, the second rotating member 120 and the fixed base 130 are located on the same axis L in the curtain track 52, namely The first transmission module 56, the second transmission module 58, the first rotating member 110, the second rotating member 120 and the fixed base 130 are coaxial, wherein the first transmission module 56 and the second transmission module 58 are arranged on the curtain On both sides of the receiving groove 522 of the rail 52, the first rotating member 110, the second rotating member 120 and the fixed base 130 are located between the first transmission module 56 and the second transmission module 58.

In this embodiment, the first rotating member 110 and the second rotating member 120 are in a male-female matching structure. The first rotating member 110 and the second rotating member 120 are rotatably screwed together; the second rotating member 120 and the fixed The base 130 is another male-female mating structure. The second rotating member 120 and the fixed base 130 are rotatably screwed to each other to form a combination of male, female, male, and female parts. The second rotation The piece 120 itself has a structure of a female piece and a male piece.

In detail, the first rotating member 110 includes a first head 112 and a first joint 114. The diameter of the first head 112 is larger than the diameter of the first joint 114. The first joint 114 is connected to the first joint 114. The first head 112 has two opposite end surfaces 112A and 112B, and the first coupling portion 114 is formed by the end surface 112B of the first head 112 extending along the axis L. The first coupling portion 114 is a bolt or A threaded column with external threads on its surface. The first head 112 has a hole 116. The hole 116 is pierced from the surface of the end surface 112A and penetrates outside the end surface 112B along the axis L. The hole 116 is used for the shaft 5642 of the transmission rod 564 in the first transmission module 56 The rod body 5642 of the transmission rod 564 is fixed to the hole 116.

On the other hand, there is still an inner hole 118 in the first joining portion 114. The inner hole 118 penetrates through the first joining portion 114 along the axis L. The inner hole 118 is connected to the hole 116, and the size of the inner hole 118 is larger than The size of the hole 116. It should be noted that when the rod 5642 of the transmission rod 564 passes through and is set in the hole 116, one end of the rod 5642 may be located in the inner hole 118 depending on the actual length, but the rod 5642 of this embodiment The shape is a square rod, which matches the square hole of the hole 116, so that the rod 5642 of the transmission rod 564 is constrained in the hole 116, so that when the transmission rod 564 rotates, the first rotating member 110 can follow the transmission rod 564 along the axis L Rotate together.

In this embodiment, the second rotating member 120 includes a second head 122 and a second coupling portion 124. The diameter of the second head 122 is larger than the diameter of the second coupling portion 124, and the second coupling portion 124 is connected The second head 122, the second head 122 has two opposite end surfaces 122A, 122B, and the second coupling portion 124 is formed by the end surface 122B of the second head 122 extending along the axis L, and the second coupling portion 124 is one A bolt or a threaded post with external threads on its surface. The second head 122 has a screw hole 126 which is pierced from the surface of the end surface 122A and penetrates outside the end surface 122B along the axis L. The second coupling portion 124 has a screw hole 128, which is pierced along the axis L and partially penetrates the second head 122. The screw hole 126 and the screw hole 128 are communicated with each other. The size of a coupling portion 114 matches, so that the first coupling portion 114 can be located in the screw holes 126, 128, and more importantly, the external thread on the surface of the first coupling portion 114 can be aligned with the screw holes 126, 128. The internal threads are matched, that is, the first coupling portion 114 can be screwed into the screw holes 126, 128, so that the first coupling portion 114 can move in the screw holes 126, 128 through rotation (screw in or out) , A male part (the first coupling portion 114 in the first rotating part 110) and a female part (the screw holes 126, 128 in the second rotating part 120) are formed into a male-female mating structure. In addition, since the first coupling portion 114 can move within the screw holes 126 and 128 through rotation, there can be a gap between the first head 112 of the first rotating member 110 and the second head 122 of the second rotating member 120 The first rotation stroke (as the first rotation stroke P1 in Figure 6B).

In addition, there is a hole 129 in the second connecting portion 124. The hole 129 is pierced along the axis L and partially penetrates the second connecting portion 124. The hole 129 is connected to the screw hole 128, and the size of the hole 129 is smaller than the screw hole 128. . In the same way, it should be noted that when the rod 5842 of the transmission rod 584 passes through and is set in the hole 129, one end of the rod 5842 may be located within the inner screw hole 128 depending on the actual length, but this embodiment The shape of the rod 5842 is a square rod, which matches the square hole of the hole 129, so that the rod 5842 of the transmission rod 584 is constrained in the hole 129, so that when the transmission rod 584 rotates, the second rotating member 120 can follow the transmission rod 584 Rotate together along the axis L.

In one embodiment, the end surface 112B of the first head 112 in the first rotating part 110 faces the end surface 122A of the second head 122 in the second rotating part 120, and the first head in the first rotating part 110 The size of the end surface 112B of the portion 112 is equal to the size of the end surface 122A of the second head 122 in the second rotating member 120 (as shown in Figure 5), so that the first rotating member 110 or the second rotating member 120 rotates to screw each other At the same time, the size of the end face 112B of the first head 112 is the same as the size of the end face 122A of the second head 122, so that the end face 112B of the first head 112 and the end face 122A of the second head 122 can be equally distributed. It can reduce the damage caused by the displacement of the rotating part (referring to the first rotating part 110 or the second rotating part 120).

In this embodiment, the fixed base 130 is disposed in the accommodating groove 522 of the curtain rail 52, and the fixed base 130 includes a through hole 132 for the second coupling portion 124 of the second rotating member 120 to pass through , The size of the second coupling portion 124 is consistent with the size of the perforation 132, and the perforation 132 is provided with an internal thread 134, and the external thread on the surface of the second coupling portion 124 can be matched with the internal thread 134 in the perforation 132, so that The second coupling part 124 can move within the perforation 132 by rotating (screw in or out) to form a male part (the second coupling part 124 in the second rotating part 120) and a female part (the fixed base 130). The perforation 132) of the male and female mating structure. In addition, since the second coupling portion 124 can move within the perforation 132 in a rotating manner, there is a second rotation stroke between the fixed base 130 and the second head 122 of the second rotating member 120 (as shown in Figure 6A The second rotation stroke P2).

It can be seen that the first rotating part 110 and the second rotating part 120 of this embodiment are in a male-female matching relationship, and the second rotating part 120 and the fixed base 130 are in another male-female matching relationship, forming a set The male part, the female part, the male part, and the female part are combined, in which the second rotating part 120 itself can be used as the female part (screw holes 126, 128) and the male part (the second connecting portion 124). In one embodiment, the fixed base 130 is movably disposed in the receiving groove 522 of the curtain rail 52, so that the first rotating member 110, the second rotating member 120 and the fixed base 130 can move left and right along the axis L. In another embodiment, the fixing base 130 is fixed in the receiving groove 522 of the curtain rail 52, and the first rotating member 110 and the second rotating member 120 can move left and right along the axis L.

In an embodiment, the end surface 122A of the second rotating member 120 and the end surface 112B of the first rotating member 110 each further include a stopper, so that the first rotating member 110 rotates relative to the second rotating member 120, or secondly rotates When the member 120 rotates relative to the first rotating member 110, the stop portion of the first rotating member 110 and the stop portion of the second rotating member 120 can be locked to each other to restrict the first rotating member 110 and the second rotating member 120 The rotation stroke of mutual rotation, while restricting the synchronous rotation of the winding devices 566, 565, 586, 585 to retract the corresponding rope 568, 569, 588, 589 ascending or descending strokes, to control the closing and closing of the curtain body 51 of the curtain 50 Open position. It should be noted that the type of the stopper is not limited. For example, in Figure 5 or Figure 6B, a stopper 121 is provided on the end surface 122A of the second head 122 of the second rotating member 120. The stopper 121 For example, it is a convex block, which is formed by the surface of the end surface 122A protruding outward, and corresponding to the end surface 112B of the first head 112 of the first rotating member 110 is also provided with a stopper, as shown in Figure 6B, A stop portion 111 is provided on the end surface 112B of the first head portion 112 of a rotating member 110. The stop portion 111 is, for example, a bump formed by protruding outward from the surface of the end surface 112B to achieve the above-mentioned mutual locking function . Similarly, as shown in Fig. 5 or Fig. 6A, the surface 130A of the fixed base 130 can be provided with a stop portion 131, and the end surface 122B of the second head 122 of the second rotating member 120 can also be provided with a stop portion. The stopper 123 allows the second rotating part 120 to rotate relative to the fixed base 130, and the stopper 131, 123 can be used to achieve mutual locking function to restrict the second rotating part 120 and the fixed base 130 from rotating mutually The rotation stroke.

The operation mode of the curtain of this embodiment is described below with reference to FIGS. 6A to 6C.

Figure 6A is a schematic diagram of an implementation aspect of the curtain limiting device created. Please also refer to Figure 6A and Figure 1. Fig. 6A shows the state where the upper curtain 51A and the lower curtain 51B shown in Fig. 1 are folded, so that the two sides of the middle rail 54 will contact the bottom side of the curtain rail 52 and the top side of the lower rail 55. That is, the lower rail 55 is moved and contacts the bottom side of the middle rail 54 to close the lower curtain 51B; and the middle rail 54 is moved and contacts the bottom side of the curtain rail 52 to close the upper curtain 51A. In the state where the upper curtain 51A and the lower curtain 51B are both folded, the first rotating member 110 and the second rotating member 120 are respectively at an upper limit position. At this time, the middle rail 54 has moved to the curtain rail 52 as mentioned above. On the bottom side, the middle rail 54 is blocked by the curtain rail 52 and cannot continue to rise, thereby making the first head 112 in the first rotating member 110 unable to continue to the left (referred to here as shown in Figure 6A away from the second rotating The direction of the piece 120) moves. On the other hand, the second head 122 of the second rotating member 120 has been moved and is in contact with the first head 112 of the first rotating member 110, so that the second head 122 of the second rotating member 120 cannot continue to move to the left. (Herein refers to the direction of the first rotating member 110 as shown in Figure 6A), so that the lower rail 55 cannot continue to rise, that is, the curtain stop device 100 of this embodiment can prevent the lower rail 55 from continuing to rise Push to the middle rail 54.

In this embodiment, it can be seen from the state where the upper curtain 51A and the lower curtain 51B are folded in Fig. 6A, the second rotating member 120 is located between the first rotating member 110 and the fixed base 130, and the second rotating member 120 can be The moving stroke is restricted by the first rotating member 110 and the fixed base 130, that is, the upper limit position of the second rotating member 120 that can be moved is defined by the position of the first rotating member 110. Further, the present embodiment further adopts the second The stopping portion 121 of the rotating member 120 and the stopping portion 111 of the first rotating member 110 are locked to each other, so as to limit the mutual rotation of the first rotating member 110 and the second rotating member 120. The movable lower limit position of the second rotating member 120 is defined by the position of the fixed base 130. Furthermore, in this embodiment, the stopper 123 of the second rotating member 120 and the stopper 131 of the fixed base 130 are locked to each other to restrict the second rotating member 120 and the fixed base 130 from rotating mutually.

In this embodiment, when the second rotating member 120 is moved to the upper limit position, as shown in FIG. 6A, there may be a second rotating stroke between the fixed base 130 and the second head 122 of the second rotating member 120 P2, the second rotation stroke P2 is the distance from the end surface 122B of the second head 122 to the surface 130A of the fixed base 130, which represents the distance between the second rotating member 120 and the fixed base 130.

In this embodiment, when the pulling rope 14 drives the transmission rod 584 to rotate in a second direction G2 through the speed change device 582, the winding devices 585 and 586 are used to wind the corresponding ropes 589 and 588 so that the lower rail 55 faces The descending direction L1 descends, so that the lower curtain 51B expands a distance. On the other hand, the rod 5842 of the transmission rod 584 is linked to the second rotating member 120, so that the second rotating member 120 rotates in the second direction G2 relative to the first rotating member 110 at the same time, and the second head of the second rotating member 120 122 moves along the axis L in a direction away from the first head 112 of the first rotating member 110, and at the same time, the second coupling portion 124 in the second rotating member 120 also rotates relative to the inside of the fixed base 130, The second head 122 of the second rotating member 120 moves along the axis L toward the fixed base 130, thereby changing the distance of the second rotating stroke P2. When the second rotating member 120 is continuously rotated to the lower limit position as shown in FIG. 6B, compared to the second rotation stroke P2 in FIG. 6A, there is a gap between the first rotating member 110 and the second rotating member 120 at this time A first rotation stroke P1.

In addition, because the second rotating member 120 is blocked by the fixed base 130 at this time and cannot continue to rotate, the pull rope 14 cannot be pulled continuously, and the lower rail 55 is in the lower limit position, that is, the maximum distance for the lower curtain 51B to expand. For example, as shown in FIG. 1, the maximum moving stroke of the lower rail 55 is the lower rail moving stroke D2, which is the distance from the top side of the lower rail 55 to the bottom side of the middle rail 54. Comparing to the movement strokes in FIGS. 6A to 6B, the second rotation stroke P2 in FIG. 6B corresponds to the lower rail movement stroke D2 in FIG.

Conversely, when the lower curtain 51B is to be rolled up, the transmission rod 584 can be driven to rotate in a first direction G1 through the speed change device 582 through the pull rope 14, and the winding devices 585 and 586 are used to wind up the corresponding ropes 589 and 588, Let the lower rail 55 ascend in the ascending direction L2. At this time, the ascending distance of the lower rail 55 is limited within the range of the aforementioned second rotation stroke P2. In other words, the second rotation stroke of the curtain limiting device 100 can be used in this embodiment P2 limits the movement stroke of the lower rail 55, and the distance of the second rotation stroke P2 is determined based on the upward or downward movement stroke of the lower rail 55. When the lower rail 55 is moved to the bottom side of the middle rail 54, at this time the second rotating member 120 is rotated to the upper limit position and cannot continue to rotate, so that the pull rope 14 cannot continue to be pulled. This prevents the lower rail 55 from continuing to rise again. The middle rail 54 is pushed, thereby avoiding the ropes 569 and 568 of the middle rail 54 from being pulled, thereby avoiding the subsequent overlapping and entanglement of the ropes 569 and 568 of the middle rail 54 due to the slack state.

In this embodiment, as shown in FIG. 6B, for example, in the foregoing process, if the second rotating member 120 is rotated, a first rotating member 110 and the second rotating member 120 are formed between With the rotation stroke P1, the movable lower limit position of the first rotating member 110 is defined by the position of the second rotating member 120. On the other hand, the movable upper limit position of the first rotating member 110 is defined according to the position where the middle rail 54 is moved to the bottom side of the curtain rail 52, that is, the middle rail 54 is moved to the bottom side of the curtain rail 52. The rail 54 is blocked by the curtain rail 52 and cannot continue to rise. At this time, the corresponding first rotating member 110 can no longer continue to the left (referring to the direction away from the second rotating member 120 as shown in Figure 6B. ) The moving position defines this upper limit position.

In this embodiment, when the pull rope 12 drives the transmission rod 564 to rotate in the second direction G2 through the speed change device 562, the winding devices 565, 566 are used to wind the corresponding ropes 569, 568 so that the middle rail 54 faces The descending direction L1 descends, so that the upper curtain 51A expands a distance, which is limited by the first rotation stroke P1 formed between the first rotating member 110 and the second rotating member 120 described above. On the other hand, the rod 5642 of the transmission rod 564 is linked to the first rotating member 110, so that the first rotating member 110 rotates in the second direction G2 relative to the second rotating member 120 at the same time, so that the first end of the first rotating member 110 The portion 112 moves along the axis L toward the direction of the second head 122 of the second rotating member 120, thereby changing the distance of the first rotation stroke P1. When the first rotating member 110 is continuously rotated to the lower limit position as shown in FIG. 6C, the first rotating member 110 is blocked by the second rotating member 120 and cannot continue to rotate, so that the pull rope 12 cannot continue to be pulled. Furthermore, the middle rail 54 is at the lower limit position, that is, the maximum distance for the upper curtain 51A to expand. For example, as shown in FIG. 1, the maximum movement stroke of the middle rail 54 is the middle rail movement stroke D1, which is the distance from the bottom side of the curtain rail 52 to the top side of the middle rail 54. Comparing to the movement strokes in FIGS. 6B to 6C, the first rotation stroke P1 in FIG. 6B corresponds to the middle rail movement stroke D1 in FIG. In addition, at this time, the drawstring 12 cannot be pulled continuously, and the middle rail 54 is at the lower limit position and cannot continue to descend. Therefore, the continuous falling of the middle rail 54 can avoid the idling phenomenon of the ropes 569 and 568 in the winding devices 565 and 566. , So as to avoid overlapping and entanglement of the ropes 569 and 568.

Conversely, when the upper curtain 51A is to be rolled up, the transmission rod 564 can be driven to rotate in the first direction G1 through the speed change device 562 through the drawstring 12, and the winding devices 565, 566 are used to wind the corresponding ropes 569, 568, Let the middle rail 54 rise in the ascending direction L2, the rod 5642 of the transmission rod 564 is linked to the first rotating member 110, so that the first rotating member 110 rotates in the first direction G1 relative to the second rotating member 120 at the same time, the first rotating member The first head 112 of the 110 moves along the axis L in a direction away from the second head 122 of the second rotating member 120. At this time, the rising distance of the middle rail 54 is limited to the range of the aforementioned first rotation stroke P1, More specifically, when the middle rail 54 is moved to the bottom side of the curtain rail 52 and is blocked by the curtain rail 52 and cannot continue to rise, the first rotating member 110 cannot continue to rotate and is located between the first rotating member 110 The upper limit position prevents the winding devices 565 and 566 from continuing to wind up the corresponding cords 569 and 568, which can avoid the overlapping and winding problems of the cords 569 and 568 in the winding devices 565 and 566. It can be seen from this that, in this embodiment, the first rotation stroke P1 of the curtain limiting device 100 can be used to limit the movement stroke of the middle rail 54. The distance of the first rotation stroke P1 is based on the rising or falling movement stroke of the middle rail 54 set.

In summary, this creation can limit and control the lifting stroke of the middle rail and the lower rail of the curtain by means of the curtain limiting device, and prevent the cords in the cord winding device from overlapping and entangled.

Furthermore, the first rotating part and the second rotating part of this creation are a male-female matching structure, so that the first rotating part and the second rotating part are rotatably screwed with each other, and the second rotating part and the fixed base are another The male and female matching structure enables the second rotating part and the fixed base to be rotatably screwed together to form a group of male parts, female parts, male parts, and female parts.

In addition, the size of the first head in the first rotating piece in the creative curtain limiting device is equal to the size of the second head in the second rotating piece, so that the first rotating piece or the second rotating piece rotates to each other When screwing, the size of the first head is the same as the size of the second head, so that the force on the contact end faces of the first head and the second head can be evenly distributed, and the damage caused by the displacement of the rotating part can be reduced.

Although this creation has been disclosed in the above examples, it is not intended to limit this creation. Anyone with ordinary knowledge in the relevant technical field can make some changes and modifications without departing from the spirit and scope of this creation. The scope of protection of this creation shall be subject to the scope of the attached patent application.

12, 14: drawstring 50: curtains 51: Curtain body 51A: Upper curtain 51B: Lower curtain 52: curtain track 522: Containment Slot 54: Middle Rail 55: lower rail 56: The first transmission module 562: Gearshift 564: Drive Rod 5641,5642: Rod body 565,566: winding device 5661: Reel seat body 5662, 5664: fixed parts 568,569: Rope 58: The second transmission module 582: Gearshift 584: Transmission Rod 5841, 5842: Rod body 585,586: Winding device 5861: Reel seat body 5862,5864: fixed parts 588,589: rope 100: Curtain limit device 110: The first rotating part 111: Stop 112: first head 112A, 112B: end face 114: The first joint 116: Hole 118: inner hole 120: The second rotating part 121, 123: stop 122: second head 122A, 122B: end face 124: second joint 126, 128: screw hole 129: Hole 130: fixed base 130A: Surface 131: Stop 132: Piercing 134: Internal thread D1: Middle rail movement stroke D2: Lower rail movement stroke L: axis L1: descending direction L2: Ascending direction G1: First direction G2: second direction P1: The first rotation stroke P2: Second rotation stroke

Figure 1 is a schematic diagram of an embodiment of the curtain created. Figure 2 is a schematic diagram of the partial components in the curtain track of Figure 1. Figure 3 is a schematic diagram of the winding device and the curtain limiting device of Figure 2 separated from the curtain track. Figure 4 is a schematic diagram of the curtain limit device created. Figure 5 is an exploded view of the curtain stop device in Figure 4. Figure 6A is a schematic diagram of an implementation aspect of the curtain limiting device created. Figure 6B is a schematic diagram of another embodiment of the curtain limiting device created. Figure 6C is a schematic diagram of another implementation aspect of the curtain limit device created.

12, 14: drawstring

50: curtains

51: Curtain body

51A: Upper curtain

51B: Lower curtain

52: curtain track

54: Middle Rail

55: lower rail

56: The first transmission module

562: Gearshift

564: Drive Rod

5641,5642: Rod body

565,566: winding device

568,569: Rope

58: The second transmission module

582: Gearshift

584: Transmission Rod

5841, 5842: Rod body

585,586: Winding device

588,589: rope

100: Curtain limit device

D1: Upper rail movement stroke

D2: Lower rail movement stroke

L: axis

L1: descending direction

L2: Ascending direction

Claims (10)

A curtain comprising: A curtain track; A middle track A lower rail, wherein the middle rail is arranged between the curtain rail and the lower rail; A curtain body is arranged between the curtain track and the lower rail. The curtain body includes an upper curtain and a lower curtain, wherein the upper curtain is connected between the curtain track and the middle rail, and the lower curtain is connected to the middle rail. Between the rail and the lower rail; A first transmission module and a second transmission module are respectively arranged in the curtain track, the first transmission module controls the rise or fall of the middle rail, and the second transmission module controls the rise or fall of the lower rail , Wherein the first transmission module and the second transmission module respectively include a speed change device, a transmission rod and a pair of winding devices, the transmission rod is connected to the speed change device and the pair of winding devices, the first transmission module The transmission device of the second transmission module and the transmission device of the second transmission module are respectively connected to a pull rope, and the pair of winding devices of the first transmission module and the pair of winding devices of the second transmission module are respectively connected to one Rope, one end of each of the pair of winding devices of the first transmission module is connected to the middle rail, and one end of each of the pair of winding devices of the second transmission module is connected to the lower rail; and A curtain limiting device is arranged in the curtain track, and the curtain limiting device is connected between the first transmission module and the second transmission module, and the first transmission module and the second transmission The module and the curtain limiting device are located on an axis in the curtain track, and the curtain limiting device includes: A first rotating member linked to the transmission rod in the first transmission module, the first rotating member includes a first head and a first coupling part, the first coupling part is connected to the first head, The surface of the first joining portion has an external thread; A second rotating member, the first rotating member is rotatably arranged in the second rotating member, and the second rotating member is linked to the transmission rod in the second transmission module, the first rotating member and the The second rotating part is a male-female matching structure. The second rotating part includes a second head, a second coupling part, and a screw hole. The second coupling part is connected to the second head. The head faces the second head, and the external thread on the surface of the first coupling part can be matched with an internal thread in the screw hole, so that the first coupling part can rotate in the screw hole Moving inward so that there is a first rotation stroke between the first rotating part and the second rotating part, and the surface of the second coupling part has an external thread; and A fixed seat body is rotatably arranged outside the second rotating part, the second rotating part and the fixed seat system are another male-female matching structure, and the fixed seat body includes a perforation for supplying The second coupling part in the second rotating part is penetrated, and the external thread on the surface of the second coupling part can be matched with an internal thread in the perforation, so that the second coupling part can rotate in The movement within the perforation allows a second rotation stroke between the fixed base and the second rotating part. The curtain according to claim 1, wherein the first rotating member, the second rotating member, and the fixed base are respectively located on the axis. The curtain according to claim 1, wherein an end surface of the first head is opposite to an end surface of the second head, and the size of the end surface of the first head is equal to the end surface of the second head size of. The curtain according to claim 1, wherein each of the first rotating member and the second rotating member further includes a stopper, and the stoppers are fixed to each other to restrict the first rotating member and the second rotating member. The two rotating parts rotate mutually. The curtain according to claim 1, wherein the second rotating member and the fixing base respectively further include a stopper, and the stoppers are fixed to each other to restrict the second rotating member and the fixing base The bodies rotate with each other. A curtain limiting device for a curtain. The curtain includes a curtain track, a middle rail, a lower rail, a curtain body, a first transmission module and a second transmission module, wherein the middle rail is arranged on the Between the curtain rail and the lower rail, the curtain body is arranged between the curtain rail and the lower rail, the curtain body includes an upper curtain and a lower curtain, the upper curtain is connected between the curtain rail and the middle rail, The lower curtain is connected between the middle rail and the lower rail, the first transmission module and the second transmission module are respectively arranged in the curtain track, and the first transmission module controls the middle rail to rise or fall , The second transmission module controls the raising or lowering of the lower rail, the first transmission module and the second transmission module respectively include a transmission device, a transmission rod and a pair of winding devices, the transmission rod is connected to the transmission Device and the pair of winding devices, the transmission device of the first transmission module and the transmission device of the second transmission module are respectively connected to a pull rope, the pair of winding devices of the first transmission module and the second transmission module The pair of winding devices of the transmission module are respectively used to connect a rope, one end of each of the pair of winding devices of the first transmission module is connected to the middle rail, and the pair of winding devices of the second transmission module One end of each of the ropes is connected to the lower rail, the curtain limiting device is arranged in the curtain track, and the curtain limiting device is connected between the first transmission module and the second transmission module, and The first transmission module, the second transmission module and the curtain limiting device are located on an axis in the curtain track, and the curtain limiting device includes: A first rotating member for linkage with the transmission rod in the first transmission module, the first rotating member includes a first head and a first coupling part, the first coupling part is connected to the first head Part, the surface of the first joining part has an external thread; A second rotating member, the first rotating member is rotatably arranged in the second rotating member, and the second rotating member is used to link the transmission rod in the second transmission module, the first rotating The second rotating member and the second rotating member are in a male-female matching structure. The second rotating member includes a second head, a second coupling portion and a screw hole, and the second coupling portion is connected to the second head. The first head faces the second head, and the external thread on the surface of the first coupling part can be matched with an internal thread in the screw hole, so that the first coupling part can rotate in The inside of the screw hole moves so that there is a first rotation stroke between the first rotating part and the second rotating part, and the surface of the second coupling part has an external thread; and A fixed seat body is rotatably arranged outside the second rotating part, the second rotating part and the fixed seat system are another male-female matching structure, and the fixed seat body includes a perforation for supplying The second coupling part in the second rotating part is penetrated, and the external thread on the surface of the second coupling part can be matched with an internal thread in the perforation, so that the second coupling part can rotate in The movement within the perforation allows a second rotation stroke between the fixed base and the second rotating part. The curtain limiting device according to claim 6, wherein the first rotating member, the second rotating member and the fixing base are respectively located on the axis. The curtain restricting device according to claim 6, wherein an end surface of the first head is opposite to an end surface of the second head, and the size of the end surface of the first head is equal to the second head The size of the end face. The curtain limiting device according to claim 6, wherein the first rotating member and the second rotating member each further include a stopper portion, and the stopper portions are mutually locked to restrict the first rotating member Rotate with the second rotating member. The curtain limiting device according to claim 6, wherein the second rotating member and the fixing base respectively further include a stopping portion, and the stopping portions are mutually locked to restrict the second rotating member and The fixed base body rotates mutually.

Images