CN203308348U - Shutter - Google Patents

Abstract

The utility model discloses a venetian blind, comprising a fixed upper beam, a movable lower beam, a plurality of parallel blades, a lifting cable, and a lifting traction cable connected to the lifting cable. The venetian blind also comprises at least two pairs of edge traction cables passing through both sides of the blades and fixed on the blades and a rotating shaft connected to the edge traction cables, at least two middle traction cables passing through the middle of the blades and fixed on the blades and a middle traction cable connected to the middle traction cables, and a counterweight movable beam. The blades are hinged. When the blades are pulled upward by the middle traction cables, they become an inverted V shape, so that the venetian blind is in a state of shielding and ventilation. The purpose of the utility model is to overcome the above-mentioned shortcomings of the prior art and provide a venetian blind that can both shield and ensure good ventilation effects.

Description

a kind of shutter

technical field

The utility model relates to the technical field of windows, in particular to a blind. the

Background technique

The blinds in the prior art rotate the blades by moving the rotating shaft to complete the opening or closing of the blades and realize the light transmission or shielding function of the blinds. Disclosed on September 12, 2012, the Chinese utility model patent with publication number 202431162U discloses a cord-drawn blind. It includes an upper rail, a lower rail, blades, a lifting pull cord, and a dimming ladder belt. On the wire roller, a metal rod is set in the center of the adjusting ohm, and the metal rod also passes through the fixer, and the blade ladder rope is wound on the metal rod; the lock device is provided with a fixing part, and the fixing part is fixedly provided with a rotating shaft A roller, an outer rotating part, and an inner rotating part are movably arranged on the rotating shaft, and the outer edge of the inner rotating part is formed with a rectangular hole, and the lifting stay cord passes through the roller and passes through the rectangular hole on the outer edge of the inner rotating part. The rope-drawn blinds can flexibly control the lifting and fixing of the curtains; the blinds are made of high-quality vinyl polymer materials, which are waterproof and mildew-proof, save wood resources, and are flame-retardant and easy to clean. The blades of these traditional shutters are all sheet-shaped, and when the light is transmitted, that is, when they are opened, the gap between the blades is relatively large, and the ventilation is better. But when covering, since the blades are stacked between the blades, the gap at the stacked place is very small, so the ventilation effect is poor. When people in the room want to shade the shutters, but also want a good ventilation environment, the traditional shutters are not up to the task. the

Utility model content

The purpose of this utility model is to overcome the above-mentioned shortcomings of the prior art, and to provide a louver that can not only shade, but also ensure a good ventilation effect. the

In order to achieve the above object, the technical scheme adopted in the utility model is:

The shutter of the utility model comprises a fixed upper beam, a movable lower beam, a plurality of parallel blades, a lifting pull wire, a lifting pull wire connected with the lifting pull wire, at least two pairs of edge pull wires passing through both sides of the blade and fixed on the blade, and a The rotating shaft connected with the edge pulling wire is characterized in that: the louver also includes at least two middle pulling wires passing through the middle of the blade and fixed on the blade, a middle pulling wire connected with the middle pulling wire, and a counterweight movable beam. The lower end of the central traction line is fixedly connected to the movable beam of the counterweight. The blades are hinged. An automatic locking mechanism and a device for controlling the descending length of the central traction line are arranged at the joint between the central traction line and the central traction line. the

The hinged blade becomes an inverted V shape when the blade is pulled upward by the central traction line, so that the louver is in a state of shielding and ventilation. the

The edge traction line passes through the counterweight movable beam and is fixedly connected to the movable lower beam, and the lifting traction line passes through the blade and the counterweight movable beam and is fixedly connected to the movable lower beam. the

The middle parts of the blades are connected by soft materials to realize the hinge structure of the blades. the

The edges of the blades are also provided with reinforcing ribs. the

The beneficial effects of the utility model are:

Compared with the prior art, the inventive point of the utility model is that the hinge-shaped blade is adopted, because the blades of the prior art are all sheet-shaped, and the shape of the blade itself is fixed. And the hinge structure of the utility model makes the shape of the blade itself changeable. When the middle pull wire is pulled to drive the middle pull wire, the middle pull wire pulls up the middle of the blade, the middle of the blade is raised, and the blade is in an inverted V shape. At this time, the blades are arranged in parallel and at intervals to achieve the effect of both shielding and ventilation. the

Description of drawings

Below in conjunction with accompanying drawing, the utility model is described in further detail:

Fig. 1 is the structural representation of the utility model that can be shielded and ventilated state;

Fig. 2 is a structural representation of the utility model not shielding and ventilating state;

Fig. 3 is the side view of state shown in Fig. 1;

Fig. 4 is the structure schematic diagram that is in the semi-shielded and ventilated state when the blade is straight in the utility model;

Fig. 5 is the schematic diagram that blade expands among the utility model;

Fig. 6 is the schematic diagram that blade is inverted V shape among the utility model;

Fig. 7 is a perspective structural schematic view of the part of the fixed upper beam. the

Detailed ways

Referring to Fig. 1 to Fig. 7, one embodiment of the present utility model is shown, including a fixed upper beam 1, a movable lower beam 2, a plurality of parallel blades 3, a lifting cable 4, and a lifting cable 41 connected with the lifting cable. Wherein the connection between the lifting pull wire 4 and the lifting pull wire 41 is located in the fixed upper beam, and the connection is provided with a locking device (not shown), so that when the blade lifting pull wire 4 is pulled downward, the lifting pull wire 41 moves upward and can Locking, this structure belongs to the prior art. The shutter also includes at least two pairs of edge pulling wires 6 passing through both sides of the blade and fixed on the blade and a rotating shaft 5 connected with the edge pulling wire 6, and the edge pulling wire 6 can pass through the fixed wire on each blade ( Not shown) Fix the edge pulling wire 6 on the blade (this structure belongs to the prior art), and edge fixing holes 31 can also be set on both sides of the blade, and the edge pulling wire 6 passes through the edge fixing hole 31 and is fixed on the edge The hole 31 is fixed on the edge fixing hole 31 by knotting or gluing, etc. Of course, the edge pulling wire 6 can also be fixed on both sides of the blade by other methods. The working principle that the rotating shaft 5 acts on the edge traction line 6 belongs to the prior art, that is, by rotating the rotating shaft 5, the blade can be opened and closed along the direction A in Fig. No change in shape occurs during opening and closing by operating the rotating shaft 5 . The shutter also includes at least two middle pull wires 8 passing through the middle of the blade 3 and fixed on the blade 3 and a middle pull wire 7 connected to the middle pull wire. A middle fixing hole 32 is set in the middle of the blade. The wire 8 passes through the middle fixing hole 32 and is fixed on the middle fixing hole 32, such as being fixed on the middle fixing hole 32 by knotting or gluing. This shutter also includes a counterweight movable beam 9. The blades 3 are located side by side between the fixed upper beam 1 and the counterweight movable beam 9, and the counterweight movable beam 9 is located between the lowermost blade and the movable lower beam 2, and the lower end of the middle traction line 8 is connected to the counterweight. The movable beam 9 is fixedly connected, and a through hole 91 is provided on the movable counterweight beam 9 , and the edge traction line 6 passes through the through hole 91 on the movable counterweight beam 9 and is fixedly connected with the movable lower beam 2 . The blade is provided with a lifting line hole 33, and the counterweight movable beam 9 is provided with a lifting through hole 92, and the lifting traction line 41 passes through the lifting line hole 33 on the blade and the lifting through hole on the counterweight movable beam 9 92 and is fixedly connected with movable lower beam 2. The blades 3 are hinged, and the middle parts of the blades are connected by soft materials to realize the hinge structure of the blades. The connection (not shown) between the middle pull wire 7 and the middle pull wire 8 is located in the fixed upper beam, so that the appearance of the window can be maintained. An automatic locking mechanism (not shown) and a device (not shown) for controlling the descending length of the middle traction line are arranged at the connection. The automatic locking mechanism belongs to the prior art, and will not be described in detail here. The device for controlling the descending length of the middle traction line can be realized in the following manner: inside the fixed upper beam, a stopper or knot 81 is provided at the connecting part of the middle stay wire and the middle traction line, and a bottom plate 11 of the fixed upper beam is provided with a The through hole (not shown) through which the wire passes, the size of the catch or knot 81 is larger than the through hole and cannot pass through the through hole. When the middle pull wire 7 is pulled downward, the middle pull wire 8 moves upward. Under the traction of the middle pull wire 8, the middle part of the blade bears an upward force. Under the gravity of the lower beam 2, the edge traction line 6 will not be pulled, so that the two sides of the blade 3 will not move, so that the middle part of the blade will bulge and form an inverted V shape, so that the louvers are in a sheltered and ventilated state (see Figure 1). At the same time, the middle traction wire 8 pulls up the counterweight movable beam 9; then pulls the middle stay wire 7 downwards, and under the action of the automatic locking mechanism, the middle stay wire 7 is loosened, and due to the gravity effect of the counterweight movable beam 9, the middle part of the blade is Pulling down, because the blocking plate or the knot can not pass through the hole, the middle traction line is locked, so that the middle part of the blade no longer moves downwards, and the blade 3 is kept in a straight state. Wherein the middle pull wire 7 and the middle pull wire 8 can be two parts of a line, and the lifting pull wire 4 and the lifting pull wire 41 can be two parts of a line. the

In order to prevent the blade 3 from being deformed during repeated rotation, unfolding, and folding, reinforcing ribs 34 are provided on the edge of the blade. the

Claims (5)

1. shutter, comprise fixedly upper beam, movable underbeam, some parallel blades, the lifting bracing wire, the lifting draught line be connected with the lifting bracing wire, at least two pairs are passed through the blade both sides and are fixed on edge draught line and the rotating shaft be connected with the edge draught line on blade, it is characterized in that: shutter also comprises that at least two are passed the blade middle part and are fixed on middle part draught line and the middle part bracing wire be connected with the middle part draught line on blade, one counterweight walking beam, draught line lower end, described middle part and counterweight walking beam are affixed, described blade is hinge type, the bracing wire of described middle part and draught line junction, middle part arrange an automatic locking mechanism and control the device of middle part draught line decline length.

2. shutter according to claim 1 is characterized in that: described hinge type blade, and when blade upwards becomes inverted V-shaped under the effect of traction at the middle part draught line, the state that shutter is in cover and ventilate.

3. shutter according to claim 1 is characterized in that: described edge draught line pass described counterweight walking beam and movable underbeam affixed, described lifting draught line passes blade and counterweight walking beam affixed with movable underbeam.

4. according to the described shutter of one of claim 1-3, it is characterized in that: the middle part of blade connects by flexible material, realizes the hinge structure of blade.

5. shutter according to claim 4 is characterized in that: blade edge is along also being provided with reinforcing rib.

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