WO2010034156A1

WO2010034156A1 - Rolling screen door or window eliminating rolling up impact force

Info

Publication number: WO2010034156A1
Application number: PCT/CN2008/072541
Authority: WO
Inventors: 涂其文
Original assignee: Tu Qiwen
Priority date: 2008-09-26
Filing date: 2008-09-26
Publication date: 2010-04-01

Abstract

A rolling screen door or window eliminating rolling up impact force comprises a screen box (1), left and right end caps (2) of the screen box, a blind shaft (3), a shaft block (4), a gauze element (5), a handle (6), handle end sockets (7), channels (8) and channel end caps (9). The rolling screen door or window is provided with eliminating rolling up impact force devices on both ends. The device comprises a sheave (10), torsion springs (11), a pulley block and ropes (12). The device reduces the resistance at opening and makes the gauze element stop at any position.

Description

Rolling screen screen door without rewinding impact

The present invention provides a mechanical structure, and more particularly to a structure of a shutter screen screen door having no rewinding impact force.

Background technique

For a long time, the roller shutter screen door products of various manufacturers have provided tension to the yarn mesh by the rebound pre-energizing torsion spring and provided resilience to the screen window. Prior art shutter screen screen doors are capable of automatically rebounding. This self-rebound shutter screen door produces large impact and noise during rebound. If the pre-energization is reduced in order to reduce the impact force and noise, the tension of the gauze is affected to affect the windproof effect.

In order to solve the above problems, many manufacturers have set up a rebound buffer device in the product, which greatly improves the performance of the product, but increases the production cost.

Summary of the invention

The object of the present invention is to provide a new design of a rolling shutter screen door with a new idea. In this scenario, some adjustments are made to the function of the rolling screen screen door, reducing some of the secondary functions in the prior art and adding some new important functions to provide a new product and product line.

The object of the present invention is achieved by the following technical solution: a reeling impact shutter screen screen door, which retains the prior art yarn box, the left and right end caps of the yarn box, the reel, the axle card, the yarn Net, handle (pull), handle head, channel, channel end cap and other components, which abandon the prior art rebound pre-energizing torsion spring, which is disposed at both ends of the shutter screen screen door The rebound impact device comprises a sheave, a balanced torsion spring, a pulley block, a drawstring and the like. One end of the sheave has a bearing structure and a yarn box end cover connection, and the other end of the sheave has a small shaft and a balanced torsion spring connection, and the other end of the balance torsion spring is coupled with the shaft card, and the shaft card is caught in the reel. The direction in which the rope rewinds the drawstring is opposite to the direction in which the spool rewinds the web. One end of the drawstring is attached to the slot of the sheave, and the drawstring is passed around the pulley on the end cap of the cartridge and the pulley on the end cap of the channel and the other end is attached to the handle of the handle.

The balance torsion spring of the present invention is different from the rebound pre-stressed torsion spring of the prior art. The rebound pre-energizing torsion spring of the prior art is long, and the balanced torsion spring of the present invention is short; The function of the rebound pre-energizing torsion spring in the technology is to provide resilience and tension for the shutter screen screen door, and the balance torsion spring of the present invention simultaneously provides resilience and pull-out force for the shutter screen screen door. And the two forces are equal in magnitude and opposite in direction, so they cancel each other out. Therefore, in fact, the balance torsion spring in the present invention provides only the tension on both sides of the gauze for the shutter screen screen door. The tension can be achieved by adjusting the pre-energization of the balance torsion spring. It is necessary to pre-energize the torsion spring when assembling, even if it is in a tight state. When the shutter screen door is pulled out of the gauze, the sheave is rewinding the drawstring, and when the reel is recycling the gauze, the sheave releases the drawstring. When the rolling screen screen door pulls out the gauze and recovers the gauze, the distance traveled by the reel for each revolution of the reel is different. The distance traveled per lap is gradually reduced when pulling out, and every time when rewinding The distance traveled is gradually increased; the opposite is true for the sheave. When the gauze is pulled out, the distance of the rope to recover the drawstring is increased by circle. When the gauze is rewinded, the rope pulls out the drawstring. The distance is reduced by the circle. The balance torsion spring can be automatically adjusted by tension and relaxation, so that the resilience and pull-out force are always in balance.

Since the rebound pre-energizing torsion spring is not provided in the present invention, it is not necessary to overcome the resilience force when pulling out the gauze, which is particularly easy, and the impact force and noise when the gauze is rewinded do not exist. The invention also allows the gauze to stay in any position.

DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic view showing the structure of the present invention. In the figure, 1 is the yarn box, 2 is the left end cover of the yarn box and the right end cover of the yarn box, 3 is the reel, 4 is the shaft card (intermediate), 5 is the gauze, 6 is the handle, 7 is the handle, 8 is Channel, 9 is the channel end cover, 10 is the sheave, 11 is the balance torsion spring, 12 is the drawstring, 13 is the pulley, 14 is the pulley shaft, 15 is the pulley cover, 16 is the pulley back cover, 17 is the pressure rope board , 18 is the screw.

Figure 2 is a connection diagram of the balance torsion spring and the sheave and the axle card. 10 is the sheave, 11 is the balance torsion spring, and 4 is the axle card. The a gear of the sheave is the bearing position, the rope groove at b, and the small shaft connected to the balance torsion spring at c.

detailed description

According to FIG. 1, one end of the gauze 5 is attached to the reel 3, and the other end is connected to the handle 6; the handle head 7 is connected to the handle 6 and locked with a screw 18; the gauze 5 is wound on the reel 3; The reel of the good gauze is loaded into the yarn box. One end of the drawstring 12 is coupled into the slot b of the sheave 10 by passing the end of the drawstring out of an aperture in the slot b and back from the other aperture of the adjacent 4 Inside, the drawstring is knotted and fixed in the groove; the drawstring 12 is placed in the opposite direction of the gauze around the groove of the sheave 10 and then placed for installation. The sheave 10 is mounted on the end cap 2 of the yarn box, the balance torsion spring 11 is mounted on the small shaft of the sheave 10, and the axle card 4 is mounted on the other end of the balance torsion spring 11; the pulley 13 is respectively mounted on the yarn box End cap 2 and channel end cap 9. The shaft card 4 on the end of the assembled yarn box, the balance torsion spring 11, and the small shaft on the sheave are inserted into the reel 3 in the yarn box 1, and the end frame 2 of the yarn box is connected and fixed to the yarn box 1. At this point, the assembly is complete.

When installing, firstly fix the installed yarn box, then install the groove 8 and the groove end cover 9, pull the rope 12 out a number of turns to make the balance torsion spring 11 rotate to achieve pre-energization, and pull the rope 12 The pulley 13 and the pulley on the end cover of the channel are passed, and the end of the rope is fixed to the handle head 7 by the pressure rope board 17.

The invention has reasonable structure, simple implementation, convenient use and low cost.

Claims

Rights request

1. A rolling shutter screen door without rewinding impact, which has a yarn box, left and right end caps of the yarn box, a reel, a shaft card, a gauze, a pull handle, a handle, a channel, and a channel end. a cover or the like, characterized in that: at each end or one end of each of the rolling screen screen doors, a device for eliminating the impact force is provided, which comprises a sheave or a combination sheave, a balanced torsion spring, a pulley block or a sliding shaft Group, drawstring, etc. One end of the sheave is connected to the end cover of the yarn box, and the other end of the sheave has a small shaft and a balanced torsion spring connection, and the other end of the balanced torsion spring is coupled with the shaft card, and the shaft card is caught in the reel. The direction in which the rope rewinds the drawstring is opposite to the direction in which the spool rewinds the web. One end of the drawstring is attached to the slot of the sheave, and the drawstring is passed around the pulley on the end cap of the cartridge and the pulley on the end cap of the channel and the other end is attached to the handle of the handle.

2. A rolling shutter screen door having no rewinding force according to claim 1, wherein: said sheave is either integral or separate.

3. The reeling impact shutter screen screen door according to claim 1, wherein: the sheave has the function of a bearing sleeve, the function of the reel, and the function of connecting the torsion spring and the shaft card to the reel by the balance. .

4. The coupling of the sheave and the reel of claim 3 wherein: it is an elastic connection by a balanced torsion spring.

5. The reeling impact shutter screen door according to claim 1, wherein: the connection manner of the balance torsion spring and the pre-energizing torsion spring of the prior art roller screen screen door are Different pre-energized torsion springs of the prior art rolling screen screen door, one end of which is coaxially connected, and the other end is connected with a small shaft on the end cover of the yarn box; and one end of the balanced torsion spring of the present invention is coaxially connected The other end is connected to the sheave (here equivalent to the bearing sleeve).

6. The reeling impact shutter screen screen door according to claim 1, wherein: the sliding shaft means that when the pulley is arranged, the pulley itself is not provided, and only the pulley shaft is arranged, so that the rope is directly slipped. The axle surface slides, we refer to this pulley shaft as a sliding shaft. The sliding shaft surface has a high finish.

7. The reel-free impact shutter screen screen door of claim 1 wherein: said balanced torsion spring is preloaded during installation.

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