CN220791097U - Reel linkage assembly, winding and unwinding assembly and roller shutter - Google Patents

Abstract

The utility model belongs to the technical field of roller blinds, and particularly relates to a roller linkage assembly, a roller unreeling assembly and a roller blind. The reel linkage assembly comprises a transmission shaft, a universal turntable which is sleeved on the transmission shaft and rotates along with the transmission shaft, and a reel end plug which is matched and clamped with the universal turntable; the universal turntable comprises a connecting shaft arranged on the turntable body and a plurality of spherical protrusions arranged on the connecting shaft in a surrounding manner, a groove for the connecting shaft to penetrate is formed in the end face of the reel end plug, a limit groove for the spherical protrusions to be respectively and correspondingly clamped is formed in the groove wall of the groove, and the spherical protrusions and the limit groove form a ball cage universal joint. The utility model is used for connecting the scroll, and the synchronous opening and closing of the linkage rolling curtain can be realized through single lifting operation. The utility model also provides a rolling and unwinding assembly and a rolling curtain comprising the rolling and unwinding assembly.

Description

Reel linkage assembly, winding and unwinding assembly and roller shutter

Technical Field

The utility model belongs to the technical field of roller blinds, and particularly relates to a scroll linkage assembly. The utility model also relates to a rolling and unwinding assembly with the reel linkage assembly and a rolling curtain.

Background

The rolling curtain is one of window decoration products, and is a curtain product which is formed by rolling curtain cloth on a scroll and driving the scroll to rotate by adopting a pull rope or a motor and the like so as to enable the curtain cloth to ascend or descend. Most of roller blinds are arranged in the inner frame of the window, and two ends of the roller are abutted with the inner frame of the window or erected on a bracket fixedly connected with the inner frame of the window.

In recent years, large-area integral windows are increasingly applied to office buildings and residential buildings, and new requirements are also put on matched curtain products. Because the curtain body of the roller shutter has a certain weight, the width of the curtain body needs to be limited in order to avoid deformation and bending of the roller shaft. The width of the single-sided curtain body is insufficient to cover the whole window area, the scheme of synchronously opening and closing the multiple roller blinds can be adopted to reduce the operation times of lifting the roller blinds, and the influence of uneven roller blind length on aesthetic feeling can be avoided.

Most of the roller blinds on the market at present are single-shaft roller blinds, and the width is insufficient to cover windows with larger areas. Multiple roller blinds can be installed on a window, but need to be rolled and unrolled separately.

Disclosure of Invention

In order to solve the above technical problems, it is necessary to provide a roller linkage assembly, a winding and unwinding assembly and a roller shutter.

In order to solve the technical problems, the utility model provides the following technical scheme:

a scroll linkage assembly comprises a transmission shaft, a universal turntable sleeved on the transmission shaft and rotating along with the transmission shaft, and a scroll end plug clamped with the universal turntable in a matching way; the universal turntable comprises a connecting shaft and a plurality of spherical protrusions arranged on the connecting shaft in a surrounding mode, a groove for the connecting shaft to penetrate is formed in the end face of the spool end plug, limiting grooves for the spherical protrusions to be respectively and correspondingly clamped are formed in the groove wall of the groove, and the spherical protrusions and the limiting grooves form a ball cage universal joint.

The utility model is used for connecting the scroll shafts, and enables the scroll shafts to be linked, so that the synchronous opening and closing of the linked rolling curtain can be realized through single lifting operation.

When the scroll linkage assembly is used, the transmission shaft is inserted into the tail end of the first scroll, one end of the universal turntable provided with the connecting shaft is plugged into the scroll end plug, and the end plug of the scroll is plugged into the end part of the second scroll to complete the connection between the first scroll and the second scroll. At this time, the first reel rotates to drive the transmission shaft to rotate, the transmission shaft drives the universal turntable to rotate, the universal turntable drives the reel end plugs to rotate, and two ends of the first reel and the second reel, which deviate from each other, need to be respectively fixed on the wall body or the mounting surface at the corresponding end, when the parallelism of the wall body or the mounting surface at the two ends is poor, or the mounting precision of a fixture for fixing the end part of the first reel and the end part of the second reel on the wall body or the mounting surface is insufficient (mainly the two end fixtures are asymmetric and are slightly misplaced), at this time, the rotation axes of the first reel and the second reel are not coincident and have included angles, but due to the spherical protrusion and the limiting groove type ball cage universal joint, the variable angle power transmission of the first reel and the second reel is realized through the ball cage universal joint, so that the transmission axes of the first reel and the second reel are self-adaptively adjusted, and stable transmission is not influenced between the first reel and the second reel, and fault-tolerant space is provided for mounting.

Preferably, the universal turntable comprises a universal female turntable rotating along with the transmission shaft and a universal male turntable detachably connected with the universal female turntable. Adjacent spools may have inconsistent shade lowering lengths when installed and may require individual adjustment of one spool to level between shades. In the structure, the universal turntable consists of two parts, namely the universal female turntable and the universal male turntable, the universal female turntable and the universal male turntable are disassembled to independently adjust a curtain body, and the curtain body is combined after being leveled to serve as the universal turntable to play a transmission role.

Preferably, a clamping groove is formed in the universal female rotary table, a protrusion is arranged on the universal male rotary table, and the universal female rotary table and the universal male rotary table are detachably connected through the protrusion and the clamping groove. The structure adopts the mode of joint to make universal female carousel and universal public carousel detachable be connected, need not to add the connecting piece, be convenient for connect and dismantle.

Preferably, the universal female turntable is provided with a turntable shaft, the universal male turntable is provided with a shaft sleeve, the shaft sleeve is connected with the turntable shaft in a sleeved mode, namely, the connecting shaft is formed by shaft sleeve and turntable shaft sleeve connection, and the spherical protrusion is arranged on the shaft sleeve. In the structure, a turntable shaft is sleeved with the shaft sleeve between the universal female turntable and the universal male turntable, so that the connection is stable.

Preferably, the protrusion is arranged on the disk body of the universal male turntable, and the clamping groove is arranged on the disk body of the universal female turntable; and/or the side wall of the turntable shaft is provided with a bulge, and the inner side wall of the shaft sleeve is provided with a clamping groove. The universal male turntable has the advantages that the contact area between the universal male turntable body and the universal female turntable body is large, the protrusions and the clamping grooves can be shallower and more, so that the clamping is stable, too much axial space is not occupied, the universal female turntable is easy to separate from the universal male turntable, the universal female turntable body is pinched by one hand, the connecting shaft is pinched by the other hand, and the universal male turntable body and the universal female turntable body are pulled out by the connecting shaft, so that the universal male turntable are easy to operate even if the embedded type is tighter. The clamping groove is formed in the side wall of the turntable shaft, the protrusion is arranged on the inner side wall of the shaft sleeve, and connection and transmission relation between the universal female turntable and the universal male turntable can be further stabilized.

Preferably, the transmission shaft is a square shaft, and a square hole is formed in the turntable shaft for the transmission shaft to penetrate. The square shaft and the square hole are matched in the structure, so that the transmission connection between the transmission shaft and the connecting shaft is stable and difficult to deform.

Preferably, a clamping groove is formed in the side wall of the spool end plug. The clamping groove is used for being matched with the reel to be connected, so that the second reel is conveniently driven to rotate by the reel end plug.

The winding and unwinding assembly comprises a first reel, a second reel, a tail plug capable of rotating along with the first reel, and the reel linkage assembly, wherein the transmission shaft is in transmission connection with the tail plug, and the reel end plug is plugged at the end part of the second reel. Because the spool linkage assembly is included, all the beneficial technical effects brought by the spool linkage assembly are not described in detail herein.

The roller shutter comprises a first shutter body, a second shutter body and the roller shaft linkage assembly, wherein one end of the first shutter body is connected to the first roller shaft, and one end of the second shutter body is connected to the second roller shaft. In the structure, the first curtain body and the second curtain body are wound or unwound through the first scroll and the second scroll driven by the first scroll to rotate. Because the winding and unwinding assembly comprises the winding and unwinding assembly, the winding and unwinding assembly has all the beneficial effects brought by the winding and unwinding assembly, and the winding and unwinding assembly is not repeated herein.

Drawings

The foregoing and other objects, features and advantages of the utility model will be apparent from the following more particular description of preferred embodiments of the utility model, as illustrated in the accompanying drawings. Like reference numerals refer to like parts throughout the drawings, and the drawings are not intentionally drawn to scale on actual size or the like, with emphasis on illustrating the principles of the utility model.

FIG. 1 is a schematic overall construction of a preferred embodiment;

FIG. 2 is an exploded view of the preferred embodiment;

FIG. 3 is a schematic view of the construction of a spool end plug in a preferred embodiment;

FIG. 4 is a top view of the universal female rotor disk (the side of the universal female rotor disk that interfaces with the disk body of the universal male rotor disk) in the preferred embodiment;

FIG. 5 is a bottom view of the universal male rotor disk (the side of the universal male rotor disk that interfaces with the disk body of the universal female rotor disk) in the preferred embodiment;

in the figure: the end plug comprises a transmission shaft 1, a reel end plug 2, a groove 21, a limit groove 22, a universal rotary disc 3, a universal female rotary disc 31, a rotary disc shaft 311, a clamping groove 312, a universal male rotary disc 32, a shaft sleeve 321, a spherical protrusion 3211 and a protrusion 322.

Detailed Description

In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to and integrated with the other element or intervening elements may also be present. The terms "mounted," "one end," "the other end," and the like are used herein for the purpose of illustrating the utility model.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 3, the utility model provides a reel linkage assembly, which comprises a transmission shaft 1, a universal turntable 3 sleeved on the transmission shaft 1 and rotating along with the transmission shaft, and a reel end plug 2 clamped with the universal turntable 3 in a matching way; the universal turntable 3 comprises a connecting shaft and a plurality of spherical protrusions 3211 which are arranged on the connecting shaft in a surrounding mode, a groove 21 for the connecting shaft to penetrate is formed in the end face of the spool end plug 2, limiting grooves 22 for the spherical protrusions 3211 to be correspondingly clamped respectively are formed in the groove wall of the groove 21, and the spherical protrusions 3211 and the limiting grooves 22 form a spherical cage universal joint. In the preferred embodiment, the spherical protrusion 3211 is directly disposed on the connecting shaft, and in other embodiments, other connecting structures may be disposed between the spherical protrusion 3211 and the connecting shaft, and a ball cage universal joint may be formed between the spherical protrusion 3211 and the spool end plug 2. The ball cage universal joint can realize variable-angle power transmission, is used for the condition that the axial direction of a transmission shaft needs to be changed, belongs to the prior art, and is not the utility model point of the utility model, and the ball cage universal joint is commonly used in an automobile transmission system in the prior art, and the application of the ball cage universal joint in the field of roller shutter reels is the first time. In the preferred embodiment, the transmission shaft 1 is a square shaft, and in other embodiments, the transmission shaft 1 may be in other shapes, so long as the transmission function is achieved.

Referring to fig. 2, in a preferred embodiment, the universal joint 3 includes a universal female joint 31 rotating with the transmission shaft 1 and a universal male joint 32 detachably connected to the universal female joint 31. The universal female turntable 31 and the universal male turntable 32 in the preferred embodiment are connected through self-structure clamping, and in other embodiments, the universal female turntable 31 and the universal male turntable 32 can be connected through external connecting pieces.

Referring to fig. 2, 4 and 5, in a preferred embodiment, a clamping groove 312 is provided on the universal female rotary disk 31, and a protrusion 322 is provided on the universal male rotary disk 32, and the universal female rotary disk 31 and the universal male rotary disk 32 are detachably connected through the cooperation of the protrusion 322 and the clamping groove 312. In the preferred embodiment, the clamping groove 312 is disposed on the end face of the disk body of the universal female rotary disk 31, and the protrusion 322 is disposed on the end face of the disk body of the universal male rotary disk 32. In other embodiments, the clamping groove 312 and the protrusion 322 may be respectively disposed at a side edge of the disk body of the universal female rotary disk 31 and the universal male rotary disk 32, or at other positions where the rotary disk shaft 311, the shaft sleeve 321, etc. are connected, or may be disposed at more than one position.

Referring to fig. 2, in a preferred embodiment, the universal female turntable 31 is provided with a turntable shaft 311, the universal male turntable 32 is provided with a shaft sleeve 321, the shaft sleeve 321 is in sleeved connection with the turntable shaft 311, that is, the connection shaft is formed by sleeving the shaft sleeve 321 with the turntable shaft 311, and the spherical protrusion 3211 is disposed on the shaft sleeve 321. The turntable shaft 311 in the preferred embodiment is hollow and cylindrical, and the shaft sleeve 321 is cylindrical; in other embodiments, the turntable shaft 311 and the shaft sleeve 321 may have other shapes.

Referring to fig. 4 and 5, in the preferred embodiment, the protrusions 322 are disposed on the disk body of the universal male turntable 32, the clamping grooves 312 are disposed on the disk body of the universal female turntable 31, and the clamping grooves and protrusions are not disposed on the turntable shaft 311 and on the inner side wall of the shaft sleeve 321. In other embodiments, the inner side walls of the turntable shaft 311 of the universal female turntable 31 and the shaft sleeve 321 of the universal male turntable 32 may be provided with a structure for locking.

Referring to fig. 1, 2 and 4, in a preferred embodiment, the transmission shaft 1 is a square shaft, and the turntable shaft 311 is provided with a square hole for the transmission shaft 1 to penetrate.

Referring to fig. 1, in a preferred embodiment, the side wall of the spool end plug 2 is provided with a clamping groove.

The utility model also provides a winding and unwinding assembly, which comprises a first reel and a second reel, wherein the tail plug of the first reel is plugged with a tail plug which can rotate along with the first reel, the winding and unwinding assembly further comprises the reel linkage assembly, the transmission shaft 1 is in transmission connection with the tail plug, and the reel end plug 2 is plugged at the end part of the second reel.

The utility model also provides a roller shutter, which comprises a first shutter body, a second shutter body and the roller shaft linkage assembly, wherein one end of the first shutter body is connected to the first roller shaft, and one end of the second shutter body is connected to the second roller shaft.

In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to the terms "preferred embodiment," "further embodiment," "other embodiments," or "specific examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

Although embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives, and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.

Claims (9)

1. The spool linkage assembly is characterized by comprising a transmission shaft (1), a universal turntable (3) sleeved on the transmission shaft (1) and rotating along with the transmission shaft, and a spool end plug (2) clamped with the universal turntable (3) in a matching way; the universal turntable (3) comprises a connecting shaft and a plurality of spherical protrusions (3211) which are arranged on the connecting shaft in a surrounding mode, a groove (21) for the connecting shaft to penetrate is formed in the end face of the spool end plug (2), limiting grooves (22) for the spherical protrusions (3211) to be respectively and correspondingly clamped are formed in the groove walls of the groove (21), and the spherical protrusions (3211) and the limiting grooves (22) form a ball cage universal joint.

2. A reel linkage assembly according to claim 1, characterized in that the universal turntable (3) comprises a universal female turntable (31) rotating with the drive shaft (1) and a universal male turntable (32) detachably connected to the universal female turntable (31).

3. A reel linkage assembly according to claim 2, characterized in that a clamping groove (312) is formed in the universal female rotary disc (31), a protrusion (322) is formed in the universal male rotary disc (32), and the universal female rotary disc (31) and the universal male rotary disc (32) are detachably connected through the protrusion (322) and the clamping groove (312).

4. A reel linkage assembly according to claim 3, characterized in that the universal female turntable (31) is provided with a turntable shaft (311), the universal male turntable (32) is provided with a shaft sleeve (321), the shaft sleeve (321) is connected with the turntable shaft (311) in a sleeved mode, namely, the connecting shaft is formed by the shaft sleeve (321) and the turntable shaft (311) in a sleeved mode, and the spherical protrusion (3211) is arranged on the shaft sleeve (321).

5. The spool linkage assembly according to claim 4, wherein the protrusions (322) are provided on the disk body of the universal male turntable (32), and the clamping grooves (312) are provided on the disk body of the universal female turntable (31); and/or a clamping groove (312) is formed in the side wall of the turntable shaft (311), and a protrusion (322) is formed in the inner side wall of the shaft sleeve (321).

6. A reel linkage assembly according to claim 4, wherein the transmission shaft (1) is a square shaft, and the turntable shaft (311) is provided with a square hole for the transmission shaft (1) to penetrate.

7. A spool linkage assembly according to any of claims 1-6, characterized in that the spool end plug (2) side wall is provided with a clamping groove.

8. A winding and unwinding assembly comprising a first reel and a second reel, wherein the tail end of the first reel is plugged with a tail plug which can rotate along with the first reel, and the winding and unwinding assembly is characterized by further comprising a reel linkage assembly according to any one of claims 1-7, wherein the transmission shaft (1) is in transmission connection with the tail plug, and the reel end plug (2) is plugged at the end part of the second reel.

9. A roller shutter comprising a first shutter body and a second shutter body, further comprising a winding and unwinding assembly according to claim 8, wherein one end of the first shutter body is connected to the first winding shaft, and one end of the second shutter body is connected to the second winding shaft.