Curtain rolling bead and dreamlike curtain

Abstract

The utility model discloses a curtain rolling bead and dreamy curtain, the curtain rolling bead comprises a rolling bead shell and a curtain pendant arranged on the rolling bead shell, the rolling bead shell comprises a dimming rod fixing part and a curtain pendant fixing part, and the rolling bead shell is also provided with an avoiding groove between the dimming rod fixing part and the curtain pendant fixing part. According to the utility model, the stopping edge of the curtain track body can conveniently extend into the avoiding groove to limit the dimming rod, so that the dimming rod is prevented from being separated from the curtain sliding groove, the width of the curtain sliding groove does not need to be deliberately reduced when the curtain track body is processed, and meanwhile, the width of the curtain sliding groove does not need to be reduced by adopting a flexible supporting piece; the machining efficiency of the curtain track body is greatly improved, meanwhile, production procedures are reduced, and materials and assembly cost are saved.

Description

Technical Field

[0001] The utility model relates to the field of smart home, in particular to a curtain bead and a dream curtain. Background Art

[0002] Compared with ordinary electric opening and closing curtains, the beads of dream curtains need to additionally set the installation position of the light-dimming rod. The bottom of the bead housing of the existing dream curtain is usually flat. In order to prevent the light-dimming rod from slipping out of the curtain chute at the bottom of the track body, on the one hand, the width of the curtain chute needs to be reduced, and on the other hand, a flexible support member needs to be arranged above the curtain chute to adjust the width of the curtain chute.

[0003] However, since the width of the curtain chute is small, it greatly affects the processing efficiency. At the same time, arranging a flexible support member above the curtain chute also increases the production process, materials and assembly costs. Therefore, it is necessary to provide a curtain bead and a dream curtain suitable for omitting the flexible support member and ensuring that the curtain chute is at a suitable width for processing. Summary of the Utility Model

[0004] The utility model provides a curtain bead and a dream curtain to solve the problem that the existing curtain needs to reduce the width of the curtain chute and additionally arrange a flexible support member to prevent the light-dimming rod from slipping out, resulting in low processing efficiency and high production and assembly costs.

[0005] In a first aspect, an embodiment of the utility model provides a curtain bead, which includes a bead housing and a curtain hanging member arranged on the bead housing. The bead housing includes a light-dimming rod fixing part and a curtain hanging member fixing part, and an avoidance groove is further formed between the light-dimming rod fixing part and the curtain hanging member fixing part of the bead housing.

[0006] Further, it further includes a curtain bead gear assembly arranged in the bead housing. The curtain bead gear assembly includes a vertical driving mechanism, a vertical driven mechanism, and a horizontal driving mechanism connected between the vertical driving mechanism and the vertical driven mechanism. The vertical driven mechanism is linked with the vertical driving mechanism through the horizontal driving mechanism. An avoidance space is formed between the vertical driving mechanism and the vertical driven mechanism, and the avoidance space corresponds to the position of the avoidance groove.

[0007] Further, the avoidance space is formed below the horizontal driving mechanism.

[0008] Further, at least part of the avoidance space penetrates through the front end face and the rear end face of the curtain bead gear assembly, and the opening of the avoidance space is located at the bottom of the bead gear assembly.

[0009] Further, a height compensation member is further arranged on the bead housing, and the height compensation member is located at the top of the bead housing.

[0010] Furthermore, the ball housing further includes a top cover, the height compensation member is a protruding member provided on the top cover, and the shape of the protruding member includes a cylindrical shape, a prismatic shape, a hemispherical shape, a frustum shape or a truncated square pyramid shape.

[0011] Furthermore, the avoidance groove is a vertical groove, the vertical groove at least partially penetrates the front end face and the rear end face of the curtain ball, and the opening of the vertical groove is located at the bottom of the curtain ball.

[0012] Furthermore, the light-dimming rod fixing part and the curtain hanging part fixing part are located on both sides in the horizontal direction of the vertical groove.

[0013] Furthermore, when the curtain ball is installed on the curtain track, both the light-dimming rod fixing part and the curtain hanging part fixing part are covered by the track profile.

[0014] Furthermore, the avoidance groove gradually increases from small to large in the up-down direction.

[0015] Furthermore, the light-dimming rod fixing part of the curtain ball forms a first side face at the avoidance groove, and the curtain hanging part fixing part of the curtain ball forms a second side face at the avoidance groove. The first side face is an arc surface, and the second side face is a vertical surface.

[0016] Furthermore, the top height of the avoidance groove is not lower than the central height of the light-dimming rod in the vertical direction.

[0017] Furthermore, the vertical active transmission mechanism is driven by the light-dimming rod of the curtain, and the vertical passive transmission mechanism is used to drive the curtain hanging part.

[0018] Furthermore, the vertical active transmission mechanism includes a light-dimming rod socket part coaxially arranged with the light-dimming rod, and further includes a common adapter linked with the light-dimming rod socket part. The horizontal transmission mechanism includes the common adapter and a first bevel gear body linked with the common adapter. The vertical passive transmission mechanism includes a second bevel gear body linked with the first bevel gear body.

[0019] Furthermore, the first bevel gear body and the common adapter of the horizontal transmission mechanism are integrally formed, or the first bevel gear body and the common adapter of the horizontal transmission mechanism are assembled separately.

[0020] Furthermore, the light-dimming rod socket part includes a ball rotating shaft and a ball worm. The ball rotating shaft is used for the light-dimming rod to pass through and be socketed, and the ball worm is sleeved outside the ball rotating shaft.

[0021] Furthermore, worm helical teeth are formed on the outer wall surface of the ball worm, the common adapter includes a ball turbine, and turbine teeth matching with the turbine helical teeth are formed on the outer wall surface of the ball turbine.

[0022] Further, the ball turbine is horizontally arranged, and a shaft hole is formed in the middle of the ball turbine. The first bevel gear body is horizontally arranged, including a first bevel gear, and further includes a positioning post that horizontally extends along the corresponding direction of the shaft hole on the first bevel gear. The positioning post is used for cooperation with the shaft hole.

[0023] Further, a placement surface is formed on the ball housing at the corresponding position of the positioning post, and the shape of the placement surface corresponds to the shape of the peripheral wall of the positioning post.

[0024] Further, wing plates extend upward on both sides of the placement surface. The top ends of the wing plates are located above the positioning post, and a notch is formed between the two wing plates for the positioning post to be placed from top to bottom.

[0025] Further, the ball housing further includes a top cover. An upright wall is formed at the bottom of the top cover at the corresponding position of the notch, and the width of the upright wall corresponds to the width of the notch.

[0026] Further, the second bevel gear body is vertically arranged. The second bevel gear body includes a second bevel gear, and the second bevel gear is used for meshing with the first bevel gear. The second bevel gear body further includes a shaft sleeve that extends downward from the second bevel gear, and the shaft sleeve is used for installing the curtain hanging member.

[0027] Further, an annular upright wall is further formed at the bottom of the top cover. The second bevel gear body further includes a column that extends upward from the second bevel gear, and the position of the annular upright wall corresponds to the position of the column.

[0028] Further, a first standard alignment structure is provided on the first bevel gear body, and a second standard alignment structure is provided on the second bevel gear body. The first standard alignment structure and the second standard alignment structure are used to unify at least the relative meshing angle of the first bevel gear body and the second bevel gear body.

[0029] Further, the first standard alignment structure includes a positioning groove opened on the first bevel gear body, and the second standard alignment structure includes a positioning protrusion opened on the second bevel gear body.

[0030] Further, the positioning groove is opened on the positioning post, and the opening of the positioning groove is downward and located on the peripheral wall of the positioning post. The positioning protrusion is arranged on the inner wall surface of the shaft sleeve.

[0031] Further, a through hole is opened on the ball housing at the corresponding position of the positioning groove, and an alignment port is opened on the ball housing at the corresponding position of the positioning protrusion.

[0032] Further, a distance piece positioning structure is provided on the running bead housing. The distance piece positioning structure includes an installation groove and retaining edges located on both sides of the opening of the installation groove. The installation groove is formed on the side surface of the running bead housing, and the two retaining edges are oppositely arranged in the vertical direction.

[0033] Further, the distance piece positioning structure is arranged on the side surface of the running bead housing close to the fixing part of the curtain hanging member, and the retaining edges enclose part of the opening of the installation groove.

[0034] Further, a first sliding contact is formed at the bottom of the running bead housing at the fixing part of the curtain hanging member, and a second sliding contact is formed at the bottom of the running bead housing at the distance piece positioning structure.

[0035] Further, the second sliding contact is located at the bottom of the bottom plate below the distance piece positioning structure.

[0036] In a second aspect, an embodiment of the present invention provides a dream curtain, which includes a curtain track body and further includes the curtain running bead described in the first aspect. A retaining edge is formed at the corresponding position of the curtain track body with respect to the avoidance groove, and the retaining edge extends in the length direction of the curtain track body.

[0037] Further, the curtain track body includes a curtain sliding groove at the bottom for the curtain hanging member to extend out, and the retaining edge is located between the vertical active transmission mechanism and the curtain sliding groove.

[0038] Further, the curtain track body includes a track profile. The track profile forms the curtain sliding groove at the bottom, and the track profile extends upward from the corresponding position of the curtain sliding groove in the avoidance space to form the retaining edge.

[0039] In the embodiment of the present invention, by dividing the running bead housing into a light-adjusting rod fixing part and a curtain hanging member fixing part, an avoidance groove is further formed between the light-adjusting rod fixing part and the curtain hanging member fixing part of the running bead housing. This can facilitate the insertion of the retaining edge of the curtain track body into the avoidance groove to limit the light-adjusting rod and prevent the light-adjusting rod from slipping out of the curtain sliding groove. When processing the curtain track body, it is not necessary to deliberately reduce the width of the curtain sliding groove, nor is it necessary to use a flexible support member to reduce the width of the curtain sliding groove, greatly improving the processing efficiency of the curtain track body, while reducing the production process, saving materials and assembly costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for description in the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0041] Figure 1 is a perspective three-dimensional view of a curtain bead in the second embodiment of the present utility model;

[0042] Figure 2 is another perspective three-dimensional view of a curtain bead in the second embodiment of the present utility model;

[0043] Figure 3 is a three-dimensional view of a curtain bead gear assembly in the second embodiment of the present utility model, and a curtain hanging member is also shown in the figure;

[0044] Figure 4 is Figure 2 exploded view;

[0045] Figure 5 is a three-dimensional view of a second bevel gear body in the second embodiment of the present utility model;

[0046] Figure 6 is a three-dimensional view of a curtain hanging member in the second embodiment of the present utility model;

[0047] Figure 7 is Figure 1 front view sectional view, the cutting plane is located in a vertical plane and the cutting position is at the positioning groove;

[0048] Figure 8 is a three-dimensional view of a bead housing in the second embodiment of the present utility model;

[0049] Figure 9 is a three-dimensional view of a top cover in the second embodiment of the present utility model;

[0050] Figure 10 is a sectional view of a dream curtain in a three-dimensional perspective in the second and fifth embodiments of the present utility model, and the curtain bead shown in Figure 1 is installed on the dream curtain. The cutting plane is located in a vertical plane and the cutting position is at the curtain bead. A partial enlarged view of the cutting plane is also shown in the figure;

[0051] Figure 11 is a three-dimensional view of a dream curtain in the fifth embodiment of the present utility model;

[0052] Figure 12 is a three-dimensional view of a track profile in the fifth embodiment of the present utility model;

[0053] Figure 13 is Figure 11 front view;

[0054] Figure 14 is a three-dimensional view of a curtain bead in the third embodiment of the present utility model. Detailed implementation manners

[0055] In order to make the technical problems, technical solutions and beneficial effects solved by the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0056] When ordinal numbers such as "first" and "second" are mentioned in the embodiments of the present utility model, unless they actually express an order meaning according to the context, they should be understood as only for distinction. The "vertical transmission mechanism" referred to in the embodiments of the present utility model is used to indicate that the transmission direction of the power of the transmission mechanism is vertical, including the power transmission from bottom to top and also including the power transmission from top to bottom. Similarly, the "horizontal transmission mechanism" is used to indicate that the transmission direction of the power of the transmission mechanism is horizontal, including the power transmission from left to right and also including the power transmission from right to left. The above transmission directions "from bottom to top", "from top to bottom", "from left to right" and "from right to left" are exemplary descriptions and do not limit the present utility model.

[0057] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0058] First Embodiment:

[0059] This embodiment provides a curtain bead of the present utility model, which includes a bead housing and a curtain hanging member provided on the bead housing. The bead housing includes a dimming rod fixing portion and a curtain hanging member fixing portion, and an avoidance groove is further formed between the dimming rod fixing portion and the curtain hanging member fixing portion of the bead housing.

[0060] In this embodiment, the avoidance groove is a through groove, and at least part of the through groove penetrates the front end face and the rear end face of the curtain bead. The bead housing includes an upper housing located above the through groove and a lower housing located below the through groove. A stop edge is formed at a corresponding position of the curtain rail body in the through groove. The stop edge is located above the curtain chute, the position height of the stop edge corresponds to the position height of the dimming rod, and the stop edge extends in the length direction of the curtain rail body.

[0061] In this embodiment, the stop edge is not directly connected to the notch of the curtain chute. When installing the curtain bead, the bead lower housing and the bead gear assembly can be installed first, and then the bead upper housing can be installed. After the upper housing and the lower housing are installed, they are positioned on the stop edge through the through groove, and at the same time, the curtain bead can slide relative to the length direction of the curtain rail body.

[0062] In the embodiment of the present utility model, the bead housing is divided into a dimming rod fixing part and a curtain hanging part fixing part, and an avoidance groove is further formed between the dimming rod fixing part and the curtain hanging part fixing part of the bead housing. It is convenient for the stop edge of the curtain rail body to extend into the avoidance groove to limit the dimming rod, prevent the dimming rod from slipping out of the curtain chute, so that when processing the curtain rail body, there is no need to deliberately reduce the width of the curtain chute, and there is no need to use a flexible support member to reduce the width of the curtain chute, greatly improving the processing efficiency of the curtain rail body, while reducing the production process, saving materials and assembly costs.

[0063] Second Embodiment:

[0064] Please refer to Figures 1 to 10 As shown, the embodiment of the present utility model provides a curtain bead, which includes a bead housing 1 and a curtain hanging part 4 arranged on the bead housing 1. The bead housing 1 includes a dimming rod fixing part 12 and a curtain hanging part fixing part 13, and the avoidance groove 11 is further formed between the dimming rod fixing part 12 and the curtain hanging part fixing part 13 of the bead housing 1.

[0065] The bead gear assembly of the traditional dream curtain usually adopts a horizontally arranged power transmission mechanism, and the rotational kinetic energy of the dimming rod in the vertical plane is converted into the rotational kinetic energy of the curtain hanging part in the horizontal plane to realize the transmission of power, thereby changing the angle of the curtain blade. However, the bead housing corresponding to the above bead gear assembly has a flat design and there is no space for opening an avoidance groove.

[0066] Based on this, in the embodiment of the present utility model, a curtain bead gear assembly is further arranged inside the bead housing 1, which includes a vertical active transmission mechanism, a vertical passive transmission mechanism, and a horizontal transmission mechanism connected between the vertical active transmission mechanism and the vertical passive transmission mechanism. The vertical passive transmission mechanism is linked with the vertical active transmission mechanism through the horizontal transmission mechanism, and an avoidance space 2 is formed between the vertical active transmission mechanism and the vertical passive transmission mechanism.

[0067] Embodiments of the present utility model provide a curtain bead gear assembly, including a vertical driving transmission mechanism, a vertical driven transmission mechanism, and a horizontal transmission mechanism connected between the vertical driving transmission mechanism and the vertical driven transmission mechanism. The vertical driven transmission mechanism is linked with the vertical driving transmission mechanism through the horizontal transmission mechanism. This changes the horizontally arranged power transmission mechanism of the traditional gear assembly into a "vertical + horizontal + vertical" power transmission mechanism, facilitating the formation of an avoidance space between the vertical driving transmission mechanism and the vertical driven transmission mechanism. When an avoidance groove is formed at the position of the bead housing corresponding to the avoidance space, it is convenient for the stop edge of the curtain rail body to extend into for limiting the light control rod, preventing the light control rod from slipping out of the curtain chute. By setting the bead gear assembly as a "vertical + horizontal + vertical" power transmission mechanism, embodiments of the present utility model can leave a space for the stop edge of the curtain rail body to extend into at the avoidance space, so as to prevent the light control rod from slipping out of the curtain chute.

[0068] As a specific solution rather than a limitation, the avoidance space 2 is formed below the horizontal transmission mechanism. The avoidance space 2 at least partially penetrates the front end face and the rear end face of the curtain bead gear assembly.

[0069] As a preferred solution rather than a limitation, the opening of the avoidance space 2 is located at the bottom of the bead gear assembly, and the avoidance space 2 is used for the stop edge 91 of the curtain rail body to extend into from bottom to top. Different from the above first embodiment, the curtain chute of the curtain rail body corresponding to this embodiment is directly connected to the stop edge, and the stop edge 91 extends upward from the curtain chute to the corresponding position of the light control rod.

[0070] The vertical driving transmission mechanism is driven by the light control rod 3 of the curtain, and the vertical driven transmission mechanism is used to drive the curtain pendant 4. As a specific solution rather than a limitation, the vertical driving transmission mechanism in this embodiment is used to transmit the power of the light control rod 3 from bottom to top to the horizontal transmission mechanism, and the vertical driven transmission mechanism is used to transmit the power of the horizontal transmission mechanism from top to bottom to the curtain pendant 4.

[0071] Specifically, the vertical driving transmission mechanism includes a light control rod socket piece 5 coaxially arranged with the light control rod 3, and also includes a common adapter piece linked with the light control rod socket piece 5. The horizontal transmission mechanism includes the common adapter piece and a first bevel gear body 6 linked with the common adapter piece. The vertical driven transmission mechanism includes a second bevel gear body 7 linked with the first bevel gear body 6.

[0072] Among them, the dimming rod socket 5 includes a ball bearing rotating shaft 51 and a ball bearing worm 52. The dimming rod 3 is inserted and sleeved in the ball bearing rotating shaft 51, and the ball bearing worm 52 is sleeved outside the ball bearing rotating shaft 51. In this embodiment, the shape of the inner wall surface of the ball bearing rotating shaft 51 corresponds to the shape of the peripheral wall of the dimming rod 3, so that the ball bearing rotating shaft 51 can rotate synchronously with the dimming rod 3. A positioning convex rib 511 is formed on the outer wall surface of the ball bearing rotating shaft 51, and a positioning groove 521 is formed on the inner wall surface of the ball bearing worm 52 at a position corresponding to the positioning convex rib 511. The positioning convex rib 511 cooperates with the positioning groove 521 at a corresponding angle to achieve circumferential fixation of the ball bearing rotating shaft 51 and the ball bearing worm 52 at a corresponding angle.

[0073] In the solution of the present utility model, the first bevel gear body and the common adapter of the above-mentioned lateral transmission mechanism are integrally formed, or the first bevel gear body and the common adapter of the lateral transmission mechanism are separately assembled. Specifically in this embodiment, the first bevel gear body and the common adapter are separately assembled.

[0074] As a specific solution rather than a limitation, a worm helical tooth 522 is formed on the outer wall surface of the ball bearing worm 52. The common adapter includes a ball bearing worm gear 8, and a worm gear tooth 81 that cooperates with the worm helical tooth 522 is formed on the outer wall surface of the ball bearing worm gear 8. Preferably, the ball bearing worm gear 8 of this embodiment further includes a limiting rib 82 that circumferentially penetrates through a plurality of worm gear teeth 81. The limiting rib 82 is at least used to limit the rotation angle of the ball bearing worm 52.

[0075] As a specific solution rather than a limitation, the ball bearing worm gear 8 is horizontally arranged, and a shaft hole 83 is formed in the middle of the ball bearing worm gear 8. The first bevel gear body 6 is horizontally arranged, including a first bevel gear 61, and further includes a positioning column 62 that horizontally extends along the corresponding direction of the shaft hole 83 on the first bevel gear 61. The positioning column 62 is used to cooperate with the shaft hole 83. The first bevel gear 61 of this embodiment is arranged on a vertical plane, and the shapes of the positioning column 62 and the shaft hole 83 correspond to each other to achieve circumferential fixation of the ball bearing worm gear 8 and the first bevel gear body 6.

[0076] Furthermore, the second bevel gear body 7 is vertically arranged. The second bevel gear body 7 includes a second bevel gear 71 arranged on a horizontal plane. The second bevel gear 71 is used to mesh with the first bevel gear 61. The second bevel gear body 7 further includes a shaft sleeve 72 that extends downward from the second bevel gear 71. The shaft sleeve 72 is used to install the curtain hanging member 4.

[0077] In this embodiment, the bushing 72 includes a slot 721 formed in the middle and a positioning hole 722 formed in the bushing 72. The curtain pendant 4 includes a hook 41 at the bottom and a clamping portion 42 above the hook 41. The clamping portion 42 is columnar and a buckle 421 is formed at a position corresponding to the positioning hole 722. When the columnar clamping portion 42 extends into the slot 721 of the bushing 72 and abuts against the bottom of the slot 721, the buckle 421 extends into the positioning hole 722 to fix the curtain pendant 4 relative to the bushing 72.

[0078] It should be noted that those skilled in the art can also split the first bevel gear body 6 and the second bevel gear body 7 into multiple independent parts according to needs, or improve or evolve the specific structures of the first bevel gear body 6 and the second bevel gear body 7. Equivalent alternative solutions based on the concept of the present utility model all fall within the protection scope of the present utility model.

[0079] In addition, in order to improve the assembly convenience of the curtain bead, those skilled in the art can also fix the second bevel gear body 7 and the curtain pendant 4 through a fixing structure according to needs, or integrally form the second bevel gear body 7 and the curtain pendant 4, or improve or evolve the specific structure at the connection of the second bevel gear body 7 and the curtain pendant 4. Equivalent alternative solutions based on the concept of the present utility model all fall within the protection scope of the present utility model.

[0080] As a preferred solution rather than a limitation, in order to improve the assembly convenience of the curtain bead and make the matching angles of the gear assemblies of each curtain bead consistent after assembly, so as to achieve the purpose of consistent setting angles of each curtain pendant and each curtain panel in the later stage, a first standard alignment structure is provided on the first bevel gear body 6 of this embodiment, and a second standard alignment structure is provided on the second bevel gear body 7. The first standard alignment structure and the second standard alignment structure are used to unify at least the relative meshing angles of the first bevel gear body 6 and the second bevel gear body 7.

[0081] Specifically, the first standard alignment structure includes a positioning groove 63 opened on the first bevel gear body 6, and the second standard alignment structure includes a positioning protrusion opened on the second bevel gear body 7. The above positioning protrusion includes a positioning bump, a positioning flange or a positioning dot. In this embodiment, the positioning protrusion is a positioning flange 73. The positioning groove 63 is opened on the positioning column 62, and the opening of the positioning groove 63 is downward and located on the peripheral wall of the positioning column 62. The positioning flange 73 is opened on the inner wall surface of the bushing 72. Correspondingly, a positioning groove 422 is opened at a position corresponding to the positioning flange 73 on the clamping portion 42 of the curtain pendant 4.

[0082] In the embodiment of the present utility model, a first standard alignment structure and a second standard alignment structure are provided. The first standard alignment structure is a positioning groove provided on a positioning post, and the second standard alignment structure is a positioning flange provided on the inner wall surface of a bushing. The opening of the positioning groove faces downward, which is the same as the opening direction of the bushing. It is convenient to use the same jig to uniformly adjust the matching angles of the parts of the gear assembly from below the curtain running beads, so that the matching angles of the parts of each gear assembly are consistent, achieving the purpose of consistent setting angles of each curtain hanging member and each curtain panel in the later stage, improving the assembly convenience of the curtain running beads and saving labor costs.

[0083] Different from the first embodiment, the avoidance groove 11 is a vertical groove, and the vertical groove at least partially penetrates the front end face and the rear end face of the curtain running bead, and the opening of the vertical groove is located at the bottom of the curtain running bead.

[0084] As a preferred solution rather than a limitation, the avoidance groove gradually increases from small to large in the up-and-down direction. The light-adjusting rod fixing part of the curtain running bead forms a first side face at the avoidance groove, and the curtain hanging member fixing part of the curtain running bead forms a second side face at the avoidance groove. The first side face is an arc surface, and the second side face is a vertical surface.

[0085] The stop edge 91 includes a top end. In some alternative solutions covered by the protection scope of the utility model, the height of the top end can be lower than the center height of the light-adjusting rod 3. When the height of the top end of the stop edge 91 is level with the bottommost height of the light-adjusting rod 3, due to the natural deformation of the light-adjusting rod 3 under the action of gravity, the light-adjusting rod 3 will present a natural downward-curved arc, so that the top end of the stop edge 91 that is level with the bottommost height of the light-adjusting rod 3 can limit a part of the downward-curved light-adjusting rod 3, which can play a certain role in preventing the light-adjusting rod 3 from falling out of the curtain chute. Preferably, in this embodiment, the height of the top end is not lower than the center height of the light-adjusting rod 3. The height of the top end of the stop edge 91 is not lower than the center height of the light-adjusting rod 3, so that the stop edge 91 can effectively limit the light-adjusting rod 3 to more effectively prevent the light-adjusting rod 3 from disengaging from the curtain chute 92.

[0086] In this embodiment, the light-adjusting rod fixing part 12 includes an annular opening 122. At least the inner wall surface of the running bead rotating shaft 51 is exposed at the annular opening 122, and the middle space surrounded by the annular opening 122 is used for the light-adjusting rod 3 to be inserted and arranged.

[0087] In this embodiment, a distance piece positioning structure is provided on the above-mentioned running bead housing 1. The distance piece positioning structure includes an installation groove 14 and retaining edges 15 located on both sides of the groove opening of the installation groove 14. The installation groove 14 is opened on the side surface of the running bead housing 1, and the two retaining edges 15 are arranged opposite to each other in the vertical direction.

[0088] As a specific solution rather than a limitation, the distance piece positioning structure is arranged on the side of the ball housing close to the fixing part 13 of the curtain hanging piece, and the baffle 15 closes part of the notch of the installation groove 14. In this embodiment, an installation groove 14 is arranged on the side surface of the ball housing 1, and two baffles 15 are arranged opposite to each other in the vertical direction, so that the distance piece is fixed on the ball housing 1 in an upright manner, facilitating the turning of the curtain track and expanding the application scenarios of the curtain ball of this embodiment.

[0089] As a preferred solution rather than a limitation, a placement surface 16 is formed at the corresponding position of the ball housing 1 for the positioning post 62, and the shape of the placement surface 16 corresponds to the shape of the peripheral wall of the positioning post 62. In this embodiment, the positioning post 62 is a hexagonal prism, and for the convenience of the positioning post 62 to rotate on the placement surface 16, the placement surface 16 of this embodiment is a circular curved surface. The placement surface 16 is used to provide a supporting force for the positioning post 62 and thus assist in fixing the first bevel gear body 6. On the one hand, it improves the installation convenience of the curtain ball, and on the other hand, it also ensures the structural stability of the internal gear assembly of the curtain ball.

[0090] As a preferred solution rather than a limitation, wing plates 17 extend upward on both sides of the placement surface 16. The top ends of the wing plates 17 are located above the positioning post 62, and a notch for the positioning post 62 to be placed from top to bottom is formed between the two wing plates 17 on both sides. The wing plates 17 assist in fixing the positioning post 62 on both sides. On the one hand, it improves the installation convenience of the curtain ball, and on the other hand, it also ensures the structural stability of the internal gear assembly of the curtain ball.

[0091] Corresponding to the above improvements, the ball housing 1 of this embodiment further includes a top cover 18. An upright wall 181 is formed at the bottom of the top cover 18 at the corresponding position of the notch, and the width of the upright wall 181 corresponds to the width of the notch. The upright wall 181 is used to close the notch between the wing plates 17 and plays a role in assisting in fixing the first bevel gear body 6.

[0092] As a preferred solution rather than a limitation, a circular upright wall 182 is further formed at the bottom of the top cover 18. The second bevel gear body 7 further includes a column 74 extending upward from the second bevel gear 71, and the position of the circular upright wall 182 corresponds to the position of the column 74. The circular upright wall 182 is used for the column 74 to extend into and assist in fixing the second bevel gear body 7, ensuring the structural stability of the internal gear assembly of the curtain ball.

[0093] As a preferred solution rather than a limitation, a bayonet 183 is further formed at the corresponding position of the top cover 18 relative to the ball turbine 8, and the bayonet 183 is used to assist in fixing the outer end of the ball turbine 8.

[0094] Corresponding to the positioning groove 63 for uniformly adjusting the matching angle of the gear assembly of the curtain bead, a through hole 19 is provided at the corresponding position of the bead housing 1 of this embodiment. Corresponding to the positioning flange 73 for uniformly adjusting the matching angle of the gear assembly of the curtain bead, a positioning port 131 is provided at the corresponding position of the bead housing for the positioning protrusion. After the bead gear assembly is placed in the bead housing 1, it is convenient to match the angles of the various parts of the gear assembly, so as to achieve the purpose of consistent setting angles of the later curtain hanging parts and curtain sheets, further improving the assembly convenience of the curtain bead and saving labor costs.

[0095] As a specific solution rather than a limitation, the dimming rod fixing part and the curtain hanging part fixing part are located on both sides of the horizontal direction of the vertical groove. When the curtain bead is installed on the curtain track, both the dimming rod fixing part and the curtain hanging part fixing part are covered by the track profile.

[0096] As a preferred solution rather than a limitation, a first sliding contact 132 is formed at the bottom of the curtain hanging part fixing part 13 of the bead housing, and a second sliding contact 121 is formed at the bottom of the dimming rod fixing part 12 of the bead housing 1. Specifically, the second sliding contact 121 is located at the bottom of the bottom plate below the distance piece positioning structure. The first sliding contact 132 and the second sliding contact 121 are respectively located on both sides of the curtain bead and are used to contact the inner wall surface of the curtain track body, which can play the role of replacing the curtain bead roller, so as to reduce the friction when the curtain bead slides in the curtain track body, while simplifying the structure of the curtain bead and ensuring the user experience.

[0097] Third Embodiment:

[0098] When the curtain bead is installed on the curtain track, in view of the fact that when dimming is realized, during the rotation of the dimming rod, a driving force will be generated to drive the whole curtain bead to shake left and right and generate noise. Please refer to Figure 14 As shown, the embodiment of the present utility model provides a curtain bead. Different from the second embodiment above, a height compensation member is further provided on the bead housing 1, and the height compensation member is located at the top of the bead housing 1. The height compensation member can be a protruding member 184 provided on the top cover 18, and the shape of the protruding member 184 includes a cylindrical shape, a prismatic shape, a hemispherical shape, a frustum shape, a square frustum shape or a combination of two / more of the above shapes.

[0099] As a specific solution rather than a limitation, the protruding member 184 of this embodiment can adopt a cylindrical bottom and a hemispherical top. The number of the protruding members 184 can be two, which are respectively provided at both ends of the top cover 18 to ensure the dynamic stability of the curtain bead when working in the curtain track body. The hemispherical top can contact the corresponding inner wall surface of the curtain track body or a certain gap can be reserved. This embodiment does not make any restrictions.

[0100] As a preferred solution but not a limitation, the protrusion 184 may be integrally formed with the top cover 18 .

[0101] This embodiment eliminates or reduces the longitudinal gap between the curtain roller and the corresponding cavity of the curtain track by providing a roller housing with a height compensation member. When the curtain roller is driven by the dimming rod in the curtain track body, the vertical displacement of the curtain roller can be effectively controlled, and the movement space of the curtain roller perpendicular to the dimming rod can be limited, thereby effectively preventing the curtain roller from shaking left and right, thereby improving the dynamic stability of the curtain roller, further reducing the noise generated by the curtain during operation, and improving the user experience.

[0102] Fourth embodiment:

[0103] This embodiment provides a dream curtain, including a curtain rail body and the curtain roller beads described in the first embodiment. The curtain rail body is formed with a stop edge at a corresponding position of the avoidance groove, and the stop edge extends in the length direction of the curtain rail body.

[0104] This embodiment of the utility model divides the roller housing into a dimming rod fixing portion and a curtain hanger fixing portion, and further forms an escape groove in the roller housing between the dimming rod fixing portion and the curtain hanger fixing portion. This allows the stop edge of the curtain track body to extend into the escape groove to retain the dimming rod and prevent it from falling out of the curtain chute. This eliminates the need to deliberately reduce the width of the curtain chute during processing of the curtain track body, nor does it require the use of flexible support members to reduce the width of the curtain chute. This significantly improves the processing efficiency of the curtain track body, reduces the number of production steps, and saves material and assembly costs.

[0105] Fifth embodiment:

[0106] Please refer to Figures 10 to 13 As shown, an embodiment of the present invention provides a dream curtain, including a curtain rail body, the curtain ball gear assembly described in the second embodiment, and the curtain ball described in the fourth embodiment. The curtain rail body is formed with a stop edge 91 at a corresponding position of the avoidance groove, and the stop edge 91 extends in the length direction of the curtain rail body.

[0107] As a preferred, but not limiting, solution, the curtain track includes a curtain chute 92 at the bottom through which the curtain hanger 4 extends. The stop edge 91 is located between the vertical active transmission mechanism and the curtain chute 92. Because the active transmission mechanism is secured to the dimming rod 3, this structure confines the dimming rod to the inner space of the curtain chute relative to the stop edge. When the stop edge matches the height of the dimming rod, this effectively prevents the dimming rod from falling out of the curtain chute beyond the stop edge.

[0108] As a preferred solution rather than a limitation, the curtain rail body includes a rail profile 9. The rail profile 9 forms the curtain chute 92 at the bottom, and the rail profile 9 extends upward from the corresponding position of the curtain chute 92 in the avoidance space to form the stop edge 91.

[0109] In some alternative solutions covered by the scope of the utility model protection, the stop edge 91 includes a top end. The height of the top end can be lower than the central height of the light-dimming rod 3. When the height of the top end of the stop edge 91 is slightly higher than the central height of the light-dimming rod, it can play a certain role in preventing the light-dimming rod 3 from falling out of the curtain chute. Preferably, in this embodiment, the height of the top end is not lower than the central height of the light-dimming rod 3. The height of the top end of the stop edge 91 not being lower than the central height of the light-dimming rod 3 enables the stop edge 91 to effectively limit the light-dimming rod 3, so as to more effectively prevent the light-dimming rod 3 from slipping out of the curtain chute 92.

[0110] In the embodiment of the present utility model, by directly forming the stop edge on the rail profile, it has the advantages of simple structure and convenient manufacturing compared with setting the stop edge on the curtain rail body. As a preferred solution rather than a limitation, the rail profile can also be formed with a sliding track at the light-dimming rod fixing part of the curtain bead. The sliding track protrudes from the surface of the rail profile and contacts the bottom of the light-dimming rod fixing part, so as to reduce the sliding friction of the curtain bead.

[0111] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A curtain bead, comprising a bead housing and a curtain hanging member provided on the bead housing, characterized in that, The bead housing includes a dimming rod fixing part and a curtain hanging part fixing part, and an avoidance groove is formed between the dimming rod fixing part and the curtain hanging part fixing part of the bead housing.

2. The curtain bead as claimed in claim 1, wherein It further includes a curtain bead gear assembly disposed in the bead housing. The curtain bead gear assembly includes a vertical driving transmission mechanism, a vertical driven transmission mechanism, and a horizontal transmission mechanism connected between the vertical driving transmission mechanism and the vertical driven transmission mechanism. The vertical driven transmission mechanism is linked with the vertical driving transmission mechanism through the horizontal transmission mechanism. An avoidance space is formed between the vertical driving transmission mechanism and the vertical driven transmission mechanism, and the position of the avoidance space corresponds to that of the avoidance groove.

3. The bead for curtain as claimed in claim 2, wherein The avoidance space is formed below the horizontal transmission mechanism.

4. The bead for curtain as claimed in claim 3, wherein, At least part of the avoidance space penetrates through the front end face and the rear end face of the curtain bead gear assembly, and the opening of the avoidance space is located at the bottom of the bead gear assembly.

5. The bead for curtain as claimed in any one of claims 1 to 4, wherein A height compensation member is further provided on the bead housing, and the height compensation member is located at the top of the bead housing.

6. The curtain bead as claimed in claim 5, wherein The bead housing further includes a top cover. The height compensation member is a protruding member provided on the top cover, and the shape of the protruding member includes a cylindrical shape, a prismatic shape, a hemispherical shape, a frustum shape, or a square frustum shape.

7. The curtain bead as claimed in any one of claims 1 to 4, characterized in that The avoidance groove is a vertical groove, and at least part of the vertical groove penetrates through the front end face and the rear end face of the curtain bead, and the opening of the vertical groove is located at the bottom of the curtain bead.

8. The curtain bead as claimed in claim 7, wherein The dimming rod fixing part and the curtain hanging part fixing part are located on both sides in the horizontal direction of the vertical groove.

9. The bead for curtain as claimed in claim 8, wherein When the curtain bead is installed on the curtain track, both the dimming rod fixing part and the curtain hanging part fixing part are covered by the track profile.

10. The curtain bead as claimed in claim 9, wherein The avoidance groove gradually increases from small to large in the up-down direction.

11. The curtain bead as claimed in claim 10, wherein, The dimming rod fixing part of the curtain bead forms a first side face at the avoidance groove, and the curtain hanging part fixing part of the curtain bead forms a second side face at the avoidance groove. The first side face is an arc face, and the second side face is a vertical face.

12. The curtain bead as claimed in claim 11, wherein The top height of the avoidance groove is not lower than the central height of the dimming rod in the vertical direction.

13. The curtain bead as claimed in any one of claims 2 to 4, characterized in that, The vertical driving transmission mechanism is driven by the dimming rod of the curtain, and the vertical driven transmission mechanism is used to drive the curtain hanging part.

14. The bead for curtain as claimed in claim 13, wherein The vertical driving transmission mechanism includes a dimming rod socket part coaxially arranged with the dimming rod, and further includes a common adapter part linked with the dimming rod socket part. The horizontal transmission mechanism includes the common adapter part and a first bevel gear body linked with the common adapter part. The vertical driven transmission mechanism includes a second bevel gear body linked with the first bevel gear body.

15. The bead chain for curtain according to claim 14, wherein The first bevel gear body and the common adapter part of the horizontal transmission mechanism are integrally formed, or the first bevel gear body and the common adapter part of the horizontal transmission mechanism are separately assembled.

16. The curtain bead as claimed in claim 15, wherein The dimming rod socket part includes a bead rotating shaft and a bead worm. The bead rotating shaft is used for the dimming rod to pass through and be socketed, and the bead worm is sleeved outside the bead rotating shaft.

17. The curtain bead as claimed in claim 16, wherein, Worm helical teeth are formed on the outer wall surface of the bead worm. The common adapter part includes a bead turbine, and turbine teeth matched with the turbine helical teeth are formed on the outer wall surface of the bead turbine.

18. The bead for curtain as claimed in claim 17, wherein The ball-bearing turbine is horizontally arranged, and a shaft hole is formed in the middle of the ball-bearing turbine. The first bevel gear body is horizontally arranged, including a first bevel gear, and further includes a positioning column horizontally extending along the corresponding direction of the shaft hole on the first bevel gear. The positioning column is used for cooperating with the shaft hole.

19. The curtain bead as claimed in claim 18, wherein, A placement surface is formed on the ball-bearing housing at the corresponding position of the positioning column, and the shape of the placement surface corresponds to the shape of the peripheral wall of the positioning column.

20. The curtain bead as claimed in claim 19, wherein, Wing plates extend upward on both sides of the placement surface. The top ends of the wing plates are located above the positioning column, and a notch is formed between the two wing plates for the positioning column to be placed from top to bottom.

21. The curtain bead as claimed in claim 20, wherein The ball-bearing housing further includes a top cover. An upright wall is formed at the bottom of the top cover at the corresponding position of the notch, and the width of the upright wall corresponds to the width of the notch.

22. The curtain bead as claimed in claim 21, wherein, The second bevel gear body is vertically arranged. The second bevel gear body includes a second bevel gear. The second bevel gear is used for meshing with the first bevel gear. The second bevel gear body further includes a shaft sleeve extending downward from the second bevel gear. The shaft sleeve is used for installing the curtain hanging member.

23. The curtain bead as claimed in claim 22, wherein An annular upright wall is further formed at the bottom of the top cover. The second bevel gear body further includes a column extending upward from the second bevel gear. The position of the annular upright wall corresponds to the position of the column.

24. The bead for curtain as claimed in claim 23, wherein A first standard alignment structure is provided on the first bevel gear body, and a second standard alignment structure is provided on the second bevel gear body. The first standard alignment structure and the second standard alignment structure are used to unify at least the relative meshing angle of the first bevel gear body and the second bevel gear body.

25. The curtain bead as claimed in claim 24, wherein, The first standard alignment structure includes a positioning groove opened on the first bevel gear body, and the second standard alignment structure includes a positioning protrusion opened on the second bevel gear body.

26. The bead for curtain as claimed in claim 25, wherein The positioning groove is opened on the positioning column, and the opening of the positioning groove is downward and located on the peripheral wall of the positioning column. The positioning protrusion is arranged on the inner wall surface of the shaft sleeve.

27. The bead for curtain as claimed in claim 26, wherein, A through hole is opened on the ball-bearing housing at the corresponding position of the positioning groove, and an alignment port is opened on the ball-bearing housing at the corresponding position of the positioning protrusion.

28. The curtain bead as claimed in any one of claims 1 to 4, characterized in that, A distance piece positioning structure is provided on the ball-bearing housing. The distance piece positioning structure includes an installation groove and retaining edges located on both sides of the opening of the installation groove. The installation groove is opened on the side surface of the ball-bearing housing, and the two retaining edges are oppositely arranged in the vertical direction.

29. The bead for curtain as claimed in claim 28, wherein The distance piece positioning structure is arranged on the side surface of the ball-bearing housing close to the fixing part of the curtain hanging member, and the retaining edges enclose part of the opening of the installation groove.

30. The curtain bead as claimed in claim 29, wherein, A first sliding contact is formed at the bottom of the ball-bearing housing at the fixing part of the curtain hanging member, and a second sliding contact is formed at the bottom of the ball-bearing housing at the fixing part of the curtain hanging member.

31. The bead for curtain as claimed in claim 30, wherein The second sliding contact is located at the bottom of the bottom plate below the distance piece positioning structure.

32. A dream curtain, comprising a curtain track body, characterized in that, It further includes a curtain ball-bearing as described in any one of claims 1 to 31. A stop edge is formed on the curtain track body at the corresponding position of the avoidance groove, and the stop edge extends in the length direction of the curtain track body.

33. The dream curtain according to claim 32, characterized in that, The curtain track body includes a curtain sliding groove at the bottom for the curtain hanging member to extend out. The stop edge is located between the vertical active transmission mechanism and the curtain sliding groove.

34. The dream curtain according to claim 33, wherein, The curtain track body includes a track profile, and the track profile forms the curtain sliding groove at the bottom, and the track profile extends upward from the corresponding position of the curtain sliding groove in the avoidance space to form the stop edge.

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