WO2022193229A1

WO2022193229A1 - Fine adjustment device for tightness of screen pull cord

Info

Publication number: WO2022193229A1
Application number: PCT/CN2021/081535
Authority: WO
Inventors: 王逸民
Original assignee: 清展科技股份有限公司
Priority date: 2021-03-18
Filing date: 2021-03-18
Publication date: 2022-09-22

Abstract

A fine adjustment device for the tightness of a screen pull cord. The fine adjustment device comprises a body (1), wherein the body (1) is provided with a first fixing section (11) and a second fixing section (12); and at least one elastic deformation section (13) is disposed between the second fixing section (12) and the first fixing section (11). The first fixing section (11) is provided with a first through hole (110), and after passing through the first through hole (110), a pull cord (9) is fixed onto the second fixing section (12), such that when the pull cord (9) is relatively loosened or tightened, the elastic margin of the at least one elastic deformation section (13) can be used to generate deformation adjustment so as to maintain the normal tightness of the tension of the pull cord (9).

Description

The fine-tuning device for the tension of the screen cable

technical field

The present invention relates to a part of a foldable screen window, in particular to a fine-tuning device for the tension of a screen wire.

Background technique

Referring to FIG. 1, it is a conventional foldable screen window 500, comprising a gauze 510 having a plurality of bending sections 511 repeatedly bent, and two wires 520 passing through the bending sections 511 for supporting the gauze A net 510 and a plurality of hole plugs 530 respectively disposed at opposite ends of the wires 520 . The foldable screen window 500 can be installed in a frame (not shown in the figure), wherein the screen 510 and the hole plugs 530 are assembled in the frame, and the wires 520 pass through the screen 510 and pass through the hole plugs 530 .

When the foldable screen window 500 is used for a long time, the wires 520 running through the screen 510 will be fatigued due to material deterioration, and the tension of the wires 520 will change due to the thermal expansion and contraction of the wires 520 caused by the ambient temperature. The phenomenon of slack or tightness occurs, thus causing the wires 520 to be unable to maintain a proper tension state to support the gauze 510, causing the gauze 510 to sag or be turned inside and out to deviate from the frame, causing the gauze to sag. The 510 cannot be unfolded or closed smoothly, which affects normal use.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a fine-tuning device for the tension of the screen wire which can provide a deformation margin to maintain the normal tension and tension of the positioning wire.

The device for fine-tuning the tension of the screen wire of the present invention comprises a body, the body is provided with a first fixing section and a second fixing section, and the first fixing section is provided with a first through hole. A pulling wire is passed through the first through hole and then fixed on the second fixing section, and at least one elastic deformation section is arranged between the second fixing section and the first fixing section.

The beneficial effects of the present invention are: when the pull wire is passed through the first through hole and fixed to the second fixed section, the at least one elastic deformation section can provide a deformation margin, and fatigue occurs due to material deterioration after the pull wire is installed , when the ambient temperature causes the tension or relaxation of the cable due to factors such as thermal expansion and contraction, the adjustment effect can be produced by the deformation margin of the fine-tuning device to maintain the normal tension state of the cable, thereby maintaining the normal tension of the cable. The normal switching function of the screen described above.

Description of drawings

FIG. 1 is a partial perspective view illustrating a conventional folding screen window and the disadvantages of its use.

FIG. 2 is a perspective view illustrating a first embodiment of the device for fine-tuning the tension of the screen cable according to the present invention.

FIG. 3 is a cross-sectional view illustrating the assembly of the first embodiment, as used with a pull wire.

FIG. 4 is a perspective view illustrating a second embodiment of the device for fine-tuning the tension of the screen pulling wire according to the present invention.

Fig. 5 is a cross-sectional view illustrating the component composition of the second embodiment.

FIG. 6 is a perspective view illustrating a third embodiment of the device for fine-tuning the tension of the screen pulling wire according to the present invention.

Fig. 7 is a cross-sectional view illustrating the component composition of the third embodiment.

FIG. 8 is a perspective view illustrating a fourth embodiment of the device for fine-tuning the tension of the screen pulling wire according to the present invention.

Figure 9 is a side view illustrating an elastically deformable section of the fourth embodiment.

FIG. 10 is a perspective view illustrating a fifth embodiment of the device for fine-tuning the tension of the screen pulling wire according to the present invention.

FIG. 11 is a perspective view illustrating a sixth embodiment of the device for fine-tuning the tension of the screen pulling wire according to the present invention.

Fig. 12 is a side view illustrating the use state of the sixth embodiment.

Detailed ways

Before the present invention is described in detail, it should be noted that in the following description, similar components are designated by the same reference numerals.

Referring to FIG. 2 , a first embodiment of the device for fine-tuning the tension of the screen pulling wire of the present invention includes a main body 1. It should be explained in advance that when the screen (not shown in the figure) is to be installed, a plurality of pulling wires 9 are required. It is used for supporting and fixing, and at least one end of each pulling wire 9 is matched with one of the first embodiment. However, in this embodiment, in order to focus on explaining the structure and function of each embodiment, the description is based on a single main body 1 with a pulling wire 9 .

Referring to FIGS. 2 and 3 at the same time, the main body 1 is provided with a first fixing section 11 and a second fixing section 12 , and an elastic deformation section 13 is arranged between the second fixing section 12 and the first fixing section 11 . The first fixing section 11 is provided with a first through hole 110 , and an embedding groove 111 surrounding the outside and surrounding the first through hole 110 and used for fixing requirements during installation. A second through hole 120 communicated with the first through hole 110 is defined on the second fixing section 12 . The elastic deformation section 13 is provided with a gap 131 , specifically, a gap is formed in the physical structure by the gap 131 , so that the elastic deformation section 13 is formed between the first fixing section 11 and the second fixing section 13 . Deformation allowance between the fixed segments 12 . Furthermore, the elastic deformation section 13 , the first fixing section 11 and the second fixing section 12 can be made of materials with different hardnesses.

When using the first embodiment, a pulling wire 9 is passed through the first through hole 110, then continues to extend through the second through hole 120, and then is fixed on the second fixing section 12, and then A wire head 91 is tied at the opening of the second through hole 120 to form a wire for fixing the screen (not shown in the figure). When the tension of the pull wire 9 is changed due to factors such as thermal expansion and cold contraction caused by weather and temperature factors, fatigue caused by material deterioration, etc., and the tension of the pull wire 9 is changed and cannot maintain the normal tightness at the time of installation, the elastic deformation section can be used. The deformation margin provided by 13 is adjusted so that the tension of the pulling wire 9 is maintained at the normal state of tightness when the screen is just installed.

Referring to FIG. 4 and FIG. 5 , it is a second embodiment of the device for fine-tuning the tension of the screen pulling wire according to the present invention. The difference between the second embodiment and the first embodiment is that the first fixing section 11 and the first The elastic deformation section 13 between the two fixing sections 12 is formed with a plurality of cutouts 131 , and the cutouts 131 are staggered, so that the elastic deformation section 13 can provide more large deformation range. The elastic deformation section 13 is provided with a through hole 130 connected between the first through hole 110 and the second through hole 120 , and the pull wire 9 passes through the first through hole 110 and the through hole 130 in sequence. As well as the second through hole 120 , the same adjustment effect as the first embodiment can be achieved by the expansion and contraction margin provided by the elastic deformation section 13 .

Referring to FIG. 6 and FIG. 7 , it is a third embodiment of the device for fine-tuning the tension of the screen pulling wire according to the present invention. The difference between the third embodiment and the first embodiment is: the first through hole of the first fixing section 11 The penetrating direction of 110 and the second through hole 120 of the second fixing section 12 is at an included angle of 90 degrees. That is to say, the extension directions of the first fixing section 11 and the second fixing section 12 are also bent at approximately 90 degrees, so that the routing path of the pull wire 9 can be changed to match the type and installation of the screen In addition to the environment, the same adjustment effect as the first embodiment and the second embodiment can also be achieved by the deformation margin provided by the elastic deformation section 13 .

Referring to FIG. 8 and FIG. 9 , it is a fourth embodiment of the device for fine-tuning the tension of the screen pulling wire according to the present invention. The difference between the fourth embodiment and the first embodiment is that the elastic deformation section 13 is an elastic member, and also That is to say, the elastic deformation section 13 is directly designed as a helical elastic body, and of course, it can also be directly made of the existing parts of the spring, thereby generating a deformation margin with a more elastic expansion and contraction range.

Referring to FIG. 10 , it is a fifth embodiment of the device for fine-tuning the tension of the screen pulling wire according to the present invention. The difference between the fifth embodiment and the fourth embodiment is that the elastic deformation section 13 substantially extends along a single direction. Rod-shaped, in the fifth embodiment, between the first fixed section 11 and the second fixed section 12, through the rod-shaped elastic deformation section 13, the elastic deformation section 13 can swing back and forth, so there is room for deformation. This achieves the desired effect that can be fine-tuned.

Referring to FIG. 11 and FIG. 12 , it is a sixth embodiment of the device for fine-tuning the tension of the screen pulling wire according to the present invention. The difference between the sixth embodiment and the fifth embodiment is that the elastic deformation section 13 is substantially connected to the The first fixing section 11 and the second fixing section 12 together generally form a surrounding frame, that is, the elastic deformation section 13 has different shapes. Between the first fixing section 11 and the second fixing section 12 of the sixth embodiment, there is a deformation margin through the compressibility and resettability of the frame, thereby achieving the desired effect of being adjustable.

To sum up, the device for fine-tuning the tension of the screen pull wire of the present invention can provide expansion and contraction margin through the at least one elastic deformation section 13. When the pull wire 9 is tightened or loosened due to other factors after installation, it can be adjusted by any The expansion and contraction margin produces an adjustment effect, so that the pull wire 9 can be maintained in a proper tension state just after the installation is completed, so the object of the present invention can be achieved.

However, the above are only examples of the present invention, and should not limit the scope of the present invention. Any simple equivalent changes and modifications made according to the scope of the application for patent of the present invention and the content of the patent specification are still within the scope of the present invention. within the scope of the invention patent.

Claims

A device for fine-tuning the tension of a screen cable, which is characterized in that it comprises a main body, a first fixing section and a second fixing section are arranged on the main body, and a first through hole is arranged on the first fixing section, and a The pulling wire is passed through the first through hole and then fixed on the second fixing section, and at least one elastic deformation section is arranged between the second fixing section and the first fixing section.
1. The device for fine-tuning the tension of the screen wire as claimed in claim 1, wherein the first fixing section is provided with an embedding groove.
1. The device for fine-tuning the tension of the screen pulling wire as claimed in claim 1, wherein a second through hole is formed on the second fixing section, and the pulling wire is passed through the second through hole, and then the second through hole is formed on the second fixing section. A line head is formed at the orifice of the two through holes.
1. The device for fine-tuning the tension of the screen wire as claimed in claim 1, wherein the elastic deformation section is provided with a missing part.
1. The device for fine-tuning the tension of the screen wire as claimed in claim 1, wherein the elastic deformation section is provided with a plurality of missing parts.
1. The device for fine-tuning the tension of the screen wire as claimed in claim 1, wherein the elastic deformation section is an elastic element.
1. The device for fine-tuning the tension of the screen pulling wire as claimed in claim 1, wherein the first fixing section, the second fixing section and the elastic deformation section are made of materials with different hardnesses.
3. The device for fine-tuning the tension of the screen wire as claimed in claim 3, wherein the penetrating direction of the first through hole and the second through hole forms an included angle of 90 degrees.
6. The device for fine-tuning the tension of the screen wire as claimed in claim 5, wherein the missing parts are arranged in a staggered manner.
1. The device for fine-tuning the tension of a screen pulling wire as claimed in claim 1, wherein the elastic deformation section is provided with at least one through hole, and the pulling wire passes through the first through hole, the through hole and the second through hole in sequence. through hole.