CN2499604Y

CN2499604Y - Struture improvement of exhaust fan

Info

Publication number: CN2499604Y
Application number: CN 01227372
Authority: CN
Inventors: 曾家丰; 顾睿颖
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-06-29
Filing date: 2001-06-29
Publication date: 2002-07-10
Anticipated expiration: 2011-06-29

Abstract

The utility model relates to a Structure improvement of an exhaust fan. A cylinder connecting tube stretches out of the front side of a square type fan body, a trumpet type air duct is locked at the outer edge of the connecting tube, a movable window blind is fastened and fixed on the back side of the square type fan body, a T-shaped lath is arranged longitudinally in the square type frame of the window blind, shaft holes at regular intervals are arranged face to face on the inner edge of the two sides of the square type frame and in the T-shaped lath respectively. Pin jointed parts provided with pin jointed holes are arranged at upper end sections of vanes; therefore, the cone type air duct sends discharging hot air to further place to prevent discharging hot air from concentrating in a exhaust outlet, the removable window blind can be open and closes automatically to discharge air smoothly and prevent hot air from returning back.

Description

A kind of structure improvement of ventilating fan

The utility model relates to a kind of ventilating fan device, particularly a kind of ventilating fan structure improvement.

Ventilating fan is used very extensive, be illustrated in figure 1 as the stereogram of commonly using ventilating fan, it mainly is to set up a fixing rod 2 in inside by a blower-casting 1 that is provided with circular open, the side pivot is tied a belt pulley 3 before this fixing rod 2, belt pulley 3 front sides connect one group of flabellum 4 with a rotating shaft, and this flabellum just is positioned at the circular open inboard of blower-casting 1.One motor 5 is set in the corner of blower-casting 1 in addition, and this motor 5 protecting wire net 7 is adorned in the side after blower-casting 1 again with a drivign belt 6 winding transmissions with 3 of belt pulleys, and before blower-casting 1 side installing one screening rain venetian blind 8; And its when using mostly with the side-by-side use of ventilating fan of whole row's formula, (consulting Fig. 2 simultaneously) to reach heat extraction, ventilates, and the function of ventilation.

The above-mentioned ventilating fan structure of commonly using has following 3 major defects: (1) its air quantity of discharging when using concentrates on exhaust port, and easily produces the situation of exhaust resistance and hot air reflux.Thereby the ventilation efficiency of reduction integral body; (2) its screening rain venetian blind is blower-casting 1 face before that is installed in, and need to belong to than hard because of being positioned at outdoor event blade itself, and when air draft was moved, screening rain venetian blind can form the beat situation and produce great resistance and cause hot air reflux, made the reduction of air draft effect.

The purpose of this utility model provides a kind of ventilating fan structure improvement, and it can solve the aforesaid drawbacks, and its row's internal resistance reduces, unlikely generation hot air reflux phenomenon, thereby improve whole ventilation efficiency.

The utility model is realized by following technological scheme, a kind of ventilating fan structure improvement, comprise square fan body and venetian blinds, it is characterized in that: a circular connecting tube is extended in the side before the square fan pedestal, connecting tube outer rim lock knot one horn shape guide duct, a venetian blinds is fixed with several U-shaped button knot sheet button knots in the side after square fan pedestal, described venetian blinds is by a square framework, some blades are formed, in square framework central longitudinal to establishing a T shape lath, and on square framework both sides inner edge and T shape lath, spaced relative axis hole is set respectively, the blade upper end section respectively is provided with the pivot part in big footpath, and the end face of pivot part provides a pivot-juction hole, and axostylus axostyle respectively passes the pivot-juction hole of the pivot part of a blade in regular turn, is hubbed in the relative axis hole in square frame both sides in the mode of being spaced behind the pivot-juction hole of the axis hole of T shape lath and the pivot part of another blade.Tubaeform guide duct is made up of some arc plates, and a lateral margin of each arc plate respectively bends an embedding and becomes attached to, and the embedding of each arc plate equal embedding of becoming attached to is tied in the smooth lateral margin of the adjacent arc plate knot of locking.

The utility model is done with embodiment below in conjunction with accompanying drawing and to be specified.

Fig. 1 is for commonly using the stereogram of ventilating fan.

Fig. 2 is for commonly using the enforcement illustration of ventilating fan.

Fig. 3 is the stereogram of the utility model.

Fig. 4 is the three-dimensional exploded view of the utility model.

Fig. 5 is the air draft phase diagram of the utility model.

Fig. 6 is the three-dimensional exploded view of another structure venetian blinds of the utility model.

Fig. 7 is the sectional view of A-A among Fig. 6.

Fig. 8 is the sectional view of B-B among Fig. 6.

Fig. 9 is the three-dimensional combination figure of another kind of structure venetian blinds in the utility model.

Figure 10 is the air draft phase diagram of another kind of structure venetian blinds in the utility model.

Figure 11 stops the air draft phase diagram for another kind of structure venetian blinds in the utility model.

10 square fan pedestals, 11 connecting tubes

12 U types are buckled knot sheet 20 similar X shape frame plates

30 transmission shaft groups, 40 flabellum groups

50 belt pulleys, 60 motors

70 drivign belts, 80 horn shape guide ducts

811 embeddings of 81 arc plates are become attached to

90 venetian blinds, 91 square frameworks

Two frames, 911 laminar body about in the of 910

The fixed hole of 912 h shape mouldings, 913 side's shapes

914 perforation, 920 the right and left frames

921 laminar body, 922 h shape mouldings

Fixed hole 924 perforation of 923 side's shapes

925 axis holes, 930 L type links

940 blades, 941 L shape sections

942 pivot parts, 943 vertical sections

944 arcuation sections, 950 axostylus axostyles

945 pivot-juction holes, 960 T shape support plates

961 pivot-juction holes, 962 screws

Be illustrated in figure 3 as the stereogram of the utility model, (please consulting Fig. 4 simultaneously), it mainly is by a square fan pedestal 10 similar X shape of the transmission frame plate 20 that locks in inside, and the section end face is consolidated a transmission shaft group 30 among this similar X shape frame plate 20, and the fixed flabellum group 40 in the axle center of these transmission group 30 leading portions, the then fixed belt pulley 50 in the axle center of transmission shaft group 30 back segments, lock in the suitable frame plate of one of similar X shape frame plate 20 in addition and tie a motor 60, and this motor 60 with 50 of belt pulleys with a drivign belt 70 winding transmissions, a circular connecting tube 11 is extended in the side before the square fan pedestal 10 again, and this connecting tube 11 outer rims lock knot one horn shape guide duct 80, the side is buckled knot sheet 12 with several U types and buckle to tie and fix a venetian blinds 90 after the square fan pedestal 10 again.

Be illustrated in figure 4 as the three-dimensional exploded view of the utility model, its horn shape guide duct 80 is made up of plural arc plate 81, and respectively bending an embedding, one of each arc plate 81 lateral margin becomes attached to 811, tie in the smooth edge of the opposite side of adjacent arc plate 81 knot of locking with the embedding of each arc plate 81 811 embeddings of becoming attached to, promptly be combined into a horn shape guide duct 80; Its venetian blinds 90 is by a square framework 91 in addition, some axostylus axostyles 950 and some blades 940 are formed, and its square framework 91 central longitudinal are to setting up a T shape support plate 960, and the relative axis hole 925 that square framework 91 both sides inner edges and 960 each setting of T shape support plate are spaced, blade 940 upper end section respectively are provided with the circular pivot part 942 in big footpath, and the end face of pivot part 942 is established a pivot-juction hole 945, and axostylus axostyle 950 respectively passes the pivot-juction hole 945 of the pivot part 942 of a blade 940 in regular turn, pivot-juction hole 945 backs of the axis hole 9925 of T shape support plate 960 and the pivot part 942 of another blade 940 are hubbed in the relative axis hole 925 of square framework 91 both sides in the mode of being spaced, and promptly are combined into a venetian blinds 90.

Be illustrated in figure 5 as the air draft view of the utility model.During its air draft, can the blade 940 of venetian blinds 90 be opened by the suction of flabellum group rotation, be beneficial to air draft and be about vertical configuration, when stopping air draft with square framework 91,940 in the blade of venetian blinds 90 can be sealed automatically by centrifugal force, and is horizontal approximately with square framework 91.

As Fig. 6,7,8, shown in the venetian blind three-dimensional exploded view of another structure, wherein the square framework comprises: two frames 910 up and down, the right and left frame 920, four L type links 930, up and down in leading flank one cross section to be set by laminar body 911 be h shape moulding 912 to two frames 910, and form the fixed hole 913 of side's shape, and the plane of structure two ends section of h shape moulding 912 respectively is provided with two perforation 914, two frames, 910 two ends respectively are provided with side cut at 45 up and down in addition, also each is provided with a h shape moulding 922 by laminar body 921 in leading flank to the right and left 920, and form the fixed hole 923 of side's shape, and the plane of structure two ends section of h shape moulding 922 respectively is provided with two perforation 924, in suitable spacings such as its short vertical planes plural axis hole 925 is set, the right and left frame 920 two ends also respectively are provided with side cut at 45 in addition, about two frames 920 and two frames 910 up and down cut edge with 45 ° of its two end and form square frames 90 mutually, 4 L type links 930 insert the fixed hole 923 of square shape of two frames up and down respectively, blade 940 is that to socket a pivot part by a L shape section 941 lower ends be pivot casing 942 in 913, and pivot casing 942 down extends a vertical section 943, vertical section 943 down extends a dustpan shape arcuate segment 944 again, on T shape support plate 960, plural pivot-juction hole 961 is set with suitable spacing;

The three-dimensional combination figure of the utility model as shown in Figure 9, this programme is because the venetian blinds broad, attaching a T shape support plate 960 in frame is consolidated, during its combination, T shape support plate is adhered on the h shape moulding 912 leading flank central positions of upper and lower end two frames 910 in two end part about in the of 960, and it is fixing with screw lock knot, again plural axis hole bar 950 is passed in regular turn the pivot casing 942 of compound leaf sheet 940 respectively, the pivot-juction hole 961 of the riser of T shape support plate 960 and the pivot casing 942 of other plural blade 940, and with the right and left frame 920 with 45 ° of side cuts at its two ends and 45 ° of square frameworks of fitting mutually of cutting edge at two frames, 910 two ends up and down, two sections of four L type links 930 are inserted the fixed hole 913 of square shape of two frames 910 up and down respectively simultaneously, inside with the fixed hole 922 of square shape of the right and left frame 920, make the two ends of plural axostylus axostyle 950 penetrate pivots knot in the relative axis hole 925 of the h shape moulding 922 short vertical planes of the right and left frame 920 respectively, two perforation 924 of the h shape moulding 922 plane of structure two ends sections of two perforation 914 of the h shape moulding 912 horizontal two ends sections of end frame 910 and the right and left frame 920 about passing with screw more in addition, and spiral shell is tied in L type link 930 respectively, two frames 910 and four L types of 920 mats of the right and left frame link 930 are fixing about the order, promptly finish combination.

Be the utility model embodiment's air draft state cut-away view as shown in figure 10, diagram is to be assembled in wall type ventilating fan 1 side before, and when ventilating fan 1 carried out the air draft action, the leaf 940 of venetian blind was that the wind-force that the mat ventilating fan is produced is opened automatically, and be vertical configuration with square shape framework, be beneficial to air draft; The blade 940 of the venetian blind of in addition when ventilating fan 1 stops air draft, (please consulting Figure 11 simultaneously) because of its fulcrum (pivot casing 942) at one of side own, so be mat centrifugal force and sagging naturally, the arcuation section 944 lower edge driving fits of blade 940 are placed on the pivot casing 942 and vertical section 943 front sides of lower leaflet 940 above making, and form closed condition automatically, as external natural wind blow pressure in addition and the unlikely wind and rain of tightr switching penetrates into.

Because the structure of the foregoing description can obtain following benefit: the hot blast of (1) discharge can be delivered at a distance, prevents that the hot blast of discharging from concentrating on exhaust port, and obtains bigger exhaust air rate, improves ventilation efficiency; (2) venetian blinds can not produce very big exhaust resistance, and can prevent hot air reflux, to obtain preferable air draft effect.

The above only is one of the utility model preferred embodiment, can not with the scope of qualification the utility model enforcement, promptly allly apply for a patent the equalization of being done according to the utility model and change and modify, all should still belong to the scope that the utility model is contained.

Claims

The improvement of 1 one kinds of ventilating fans, comprise square fan body and venetian blinds, it is characterized in that: a circular connecting tube is extended in the side before the square fan pedestal, connecting tube outer rim lock knot one horn shape guide duct, a venetian blinds is fixed with several U-shaped button knot sheet button knots in the side after square fan pedestal, described venetian blinds is by a square framework, if axostylus axostyle and cured leaf sheet are formed, in square framework central longitudinal to establishing a T shape lath, and square framework both sides inner edge and T shape lath respectively are provided with spaced relative axis hole, the blade upper end section respectively is provided with the pivot part in big footpath, and the end face of pivot part provides a pivot-juction hole, and axostylus axostyle respectively passes the pivot-juction hole of the pivot part of a blade in regular turn, is hubbed in the relative axis hole in square frame both sides in the mode of being spaced behind the pivot-juction hole of the axis hole of T shape lath and the pivot part of another blade.
2 ventilating fan structure improvements according to claim 1, it is characterized in that: described horn shape guide duct is made up of some arc plates, one of each arc plate lateral margin respectively bends an embedding and becomes attached to, and the embedding of each arc plate equal embedding of becoming attached to is tied in the smooth lateral margin of the adjacent arc plate knot of locking.
3 ventilating fan structure improvements according to claim 1 and 2 is characterized in that: described square framework comprises two limit part frames about two frames up and down, and the L type connects;

Two frames up and down, each is provided with a h shape moulding by laminar body in leading flank, and forms the fixed hole of side's shape, and the plane of structure two ends section of h shape moulding respectively is provided with two perforation, and two frame two ends respectively are arranged to 45 up and down in addition.Side cut;

The right and left frame, each is provided with a h shape moulding by laminar body in leading flank, and forms the fixed hole of side's shape, and the plane of structure two ends section of h shape moulding respectively is provided with two perforation, in its short vertical plane etc. suitably spacing plural axis hole is set, the right and left frame two ends respectively are arranged to 45 in addition.Side cut;

The right and left frame and two frames are up and down cut edge with 45 ° of its two ends and are formed the square frames mutually, simultaneously in the fixed hole of square shape that two sections of four L type links are inserted two frames up and down respectively, T shape support plate two ends up and down adheres on the h shape moulding front center position of two frames up and down, is provided with several knot holes on T shape plate.
4 ventilating fan structure improvements according to claim 3 is characterized in that: the structure of described blade is by connecing a pivot casing under the L shape section, and pivot casing down extends a vertical section, vertically down extends a dustpan shape arcuation section again.