CN109138803B

CN109138803B - Separate type blade angle adjusting mechanism

Info

Publication number: CN109138803B
Application number: CN201710507309.3A
Authority: CN
Inventors: 陈柏宇
Original assignee: Sheen World Technology Corp
Current assignee: Sheen World Technology Corp
Priority date: 2017-06-28
Filing date: 2017-06-28
Publication date: 2020-03-10
Anticipated expiration: 2037-06-28
Also published as: CN109138803A

Abstract

The utility model provides a disconnect-type blade angle guiding mechanism, include a casing, a worm wheel and a commentaries on classics subassembly, the worm wheel is rotationally located the casing, the commentaries on classics subassembly is rotationally located the casing and has a first commentaries on classics pole and a second commentaries on classics pole of driving, first commentaries on classics pole is located the casing and has a joggled worm wheel's worm-gear portion and a joint portion that connects worm-gear portion, joint portion wherein has a shaft hole and two locating holes that communicate the shaft hole relatively, the top that the commentaries on classics pole was driven to the second is located the casing and has a axial region and two locating convex parts of locating the axial region relatively, the axial region wherein wears to locate in the shaft hole of first commentaries on classics pole, the locating convex part then is the joint in the locating hole of. Therefore, the first and second driving rods can be assembled by consumers, so as to prevent the blades or the blades from being damaged in the packaging or transporting process.

Description

Separate type blade angle adjusting mechanism

Technical Field

The present invention relates to window curtains, and more particularly, to a separate blade angle adjustment mechanism for a window curtain.

Background

In order to change the light transmission amount of the external light entering the room, a blade angle adjusting mechanism is arranged in the curtain structure to control the setting angle of the blades. In the prior art, blade angle guiding mechanism mainly includes a casing, a worm wheel and a worm, the casing is installed in the entablature of (window) curtain, the worm wheel is rotationally installed in the casing, the one end of worm is worn to locate in the casing and the engagement in the worm wheel, the other end of worm is worn to locate the casing and is exposed and supplies a commentaries on classics stick to collude the card outside the entablature, let the user drive the worm by aforementioned commentaries on classics stick, just can drive the worm wheel and rotate after the worm receives to drive the commentaries on classics, the worm wheel rethread reaches the purpose of adjusting the blade angle through other drive assembly after that.

However, since the worm and the worm wheel are already installed in the housing when the product is shipped from the factory, and are not self-assembled by the consumer after purchase, the end of the worm exposed to the upper beam is easily pressed to the uppermost blade after the product is packaged, so that the blade is deformed or damaged, and even the blade may be broken due to collision during transportation. Therefore, there is a need for improvement of the aforementioned structure.

Disclosure of Invention

The present invention is directed to a separable blade angle adjustment mechanism, which can be assembled by a consumer to avoid the problem of damage to the blade or structural fracture during packaging or transportation.

In order to achieve the above object, the angle adjustment mechanism of the separable blade of the present invention includes a housing, a worm gear and a driving assembly. The worm wheel is rotatably arranged in the shell; the driving component is rotatably arranged on the shell and is provided with a first driving rod and a second driving rod, the first driving rod is positioned in the shell and is provided with a worm rod part and a clamping part, the worm rod part is engaged with the worm wheel, the clamping part is connected with the worm part and is provided with a shaft hole and two opposite positioning holes, the axial direction of the shaft hole is parallel to the axial direction of the worm part, the two positioning holes are radially communicated with the shaft hole, the top end of the second driving rotating rod is positioned in the shell, the bottom end of the second driving rotating rod is positioned outside the shell, wherein, the top end of the second driving rotating rod is provided with a shaft part and two opposite positioning convex parts, the shaft part is arranged in the shaft hole of the clamping part of the first driving rotating rod in a penetrating way, the two positioning convex parts are arranged on the peripheral surface of the shaft part and are respectively clamped in one positioning hole of the clamping part of the first driving rotating rod, so that the first driving rotating rod and the second driving rotating rod are assembled together. Therefore, the first rotating rod and the second rotating rod can be assembled by a consumer after the consumer purchases the product, so that the damage to the blade or the structure of the blade is avoided in the packaging or transporting process.

Preferably, the shaft hole and the shaft portion have non-circular cross-sectional shapes, and the first and second rotation levers are further restricted from relative rotation by the insertion between the shaft hole and the shaft portion.

Preferably, the bottom end of the second driving rod has a hooking hole for hooking a rotating rod, so that the driving assembly can rotate by the driving of the rotating rod.

Drawings

Fig. 1 is an external perspective view of a separate blade angle adjustment mechanism according to the present invention.

Fig. 2 is an exploded perspective view of the split vane angle adjustment mechanism of the present invention.

Fig. 3 is a bottom view of the first rotation driving member provided in the separate vane angle adjusting mechanism of the present invention.

FIG. 4 is a top view of a first rotation drive member provided by the split vane angle adjustment mechanism of the present invention.

Fig. 5 is a combined sectional view of the separate vane angle adjustment mechanism of the present invention.

[ notation ] to show

10 separated blade angle adjusting mechanism 12 rotating shaft

14 rotating rod 20 shell

22 half-shell 24 first mounting groove

26 second mounting groove 30 Worm wheel

32 rectangular clamping hole 40 driving and rotating assembly

50 first driving rod 51 worm part

52 shaft hole of clamping part 53

54 positioning hole 55 joint groove

60 second driving lever 61 shaft part

62 locating boss 63 engagement

64 notch 65 hook clamping hole

Detailed Description

The technical contents and features of the present invention will be described in detail below with reference to some preferred embodiments and drawings, and directional terms such as "top", "bottom", "left", "right", "inner" and "outer" referred to in this specification are only exemplary terms based on a normal use direction and are not intended to limit the scope of claims.

Referring to fig. 1 to 2, the separated blade angle adjusting mechanism 10 of the present invention includes a housing 20, a worm wheel 30, and a driving assembly 40.

The housing 20 is formed by two half shells 22 that are butted against each other, and the housing 20 forms a first mounting groove 24 that horizontally penetrates through the left and right opposite side surfaces and a second mounting groove 26 that obliquely penetrates through the top and bottom opposite side surfaces between the two half shells 22.

The worm wheel 30 is rotatably disposed in the first mounting groove 24 of the housing 20 and has a rectangular engaging hole 32, and the rectangular engaging hole 32 is used for passing a rotating shaft 12, so that the rotating shaft 12 and the worm wheel 30 can rotate synchronously.

The driving assembly 40 has a first driving rod 50 and a second driving rod 60, wherein:

the first driving lever 50 is rotatably disposed in the second mounting groove 26 of the housing 20 and has a worm part 51 and a clamping part 52, the worm part 51 is engaged with the worm wheel 30, the clamping part 52 is integrally connected with the worm part 51 and has a shaft hole 53, two opposite positioning holes 54 and a circular engaging groove 55, wherein: the shaft hole 53 extends from the bottom end surface of the clamping portion 52 in the direction towards the worm portion 51, and the axial direction of the shaft hole 53 is parallel to the axial direction of the worm portion 51; the axial direction of the positioning hole 54 is perpendicular to the axial direction of the shaft hole 53, one end of the positioning hole 54 is communicated with the top end of the shaft hole 53, and one end of the positioning hole 54 forms an opening on the peripheral surface of the clamping part 52; the engagement groove 55 is adjacent to the bottom end of the shaft hole 53 and communicates with the shaft hole 53.

The second driving rod 60 is rotatably disposed in the second mounting groove 26 of the housing 20, and the top end of the second driving rod 60 is disposed in the housing 20 and has a shaft portion 61, two opposite positioning protrusions 62 and a circular engaging portion 63, wherein: the shaft 61 has a notch 64, so that the shaft 61 has the capability of elastic deformation through the notch 64 for convenient assembly; the positioning projection 62 integrally extends outward from the outer peripheral surface of the tip end of the shaft 61 in the radial direction of the shaft 61; the circular engaging portion 63 abuts on the bottom end of the shaft portion 61. In addition, the bottom end of the second driving rod 60 is located outside the housing 20 and has a hooking hole 65 for hooking a rotating rod 14.

When the first and second driving levers 50, 60 are assembled, the second driving lever 60 is inserted into the shaft hole 53 of the first driving lever 50 through the shaft 61, and is simultaneously clamped into the positioning hole 54 of the clamping portion 52 of the first driving lever 50 through the two positioning protrusions 62, so as to ensure that the first and second driving levers 60 cannot be separated after the assembly is completed, at this time, the rotating rod 14 is hooked into the hooking hole 63 of the second driving lever 60 and applies force to rotate the rotating rod 14, so that the rotating rod 14 drives the worm wheel 30 through the second driving lever 60, and the worm wheel 30 can achieve the effect of adjusting the blade angle through the rotating shaft 12 and other transmission components after the rotation.

In order to further ensure that the first and second driving levers 50 and 60 cannot rotate relative to each other after the assembly is completed, as shown in fig. 3 to 5, the shaft hole 53 of the first driving lever 50 and the shaft portion 61 of the second driving lever 60 both have a non-circular cross-sectional shape, and in the present embodiment, the cross-sectional shape of the shaft hole 53 and the cross-sectional shape of the shaft portion 61 are both hexagonal, but the cross-sectional shape is not limited to this shape, and may be represented by other polygonal shapes.

As can be seen from the above, the worm wheel 30 and the first driving rod 50 are originally hidden in the housing 20, and the second driving rod 60 is a separate component, so that the consumer can fix the second driving rod 60 to the first driving rod 50 in a self-assembling manner after purchasing the related curtain product. In other words, the second driving rod 60 does not protrude out of the housing 20 and the upper beam during the packaging and transportation process, so that the second driving rod 60 is prevented from being broken by an improper external force, and the blade is prevented from being damaged or deformed by the extrusion of the second driving rod 60.

Claims

1. A split vane angle adjustment mechanism, comprising:

a housing;

a worm gear rotatably disposed in the housing; and

a drive commentaries on classics subassembly, rotationally locate this casing and have a first commentaries on classics pole and a second and drive the commentaries on classics pole, this first commentaries on classics pole is located this casing and has a worm part and a joint portion, this worm part meshing connects in this worm wheel, this joint portion connects this worm part and has a shaft hole and two relative locating holes, the axial direction in this shaft hole is on a parallel with the axial of this worm part, this two locating holes radially communicate in this shaft hole, the top that this second driven the commentaries on classics pole is located this casing and has a axial region and two relative location convex parts, this axial region wears to locate in the shaft hole of this first joint portion that drives the commentaries on classics pole, the outer peripheral face of this axial region and respectively the joint in this locating hole of this first joint portion that drives the commentaries on classics pole are located to this second, the bottom that this second driven the commentaries on classics pole is located outside.

2. The split vane angle adjustment mechanism of claim 1, wherein the cross-sectional shape of the shaft hole and the cross-sectional shape of the shaft portion are both non-circular.

3. The split vane angle adjustment mechanism of claim 2, wherein the cross-sectional shape of the shaft hole and the cross-sectional shape of the shaft portion are both hexagonal.

4. The separate blade angle adjusting mechanism of claim 1, wherein the engaging portion of the first rotating member has an engaging groove adjacent to the shaft hole, and the second rotating member has an engaging portion adjacent to the shaft portion, the engaging portion being embedded in the engaging groove.

5. The split vane angle adjustment mechanism of claim 4, wherein the cross-sectional shape of the engagement groove and the cross-sectional shape of the engagement portion are both circular.

6. The split vane angle adjustment mechanism of claim 1, wherein the second driving rod has a hooking hole at a bottom end thereof.