KR101727281B1 - Functional protective net of an electric fan improved compatibility - Google Patents

Abstract

Disclosed is a functional front safety net of a fan with improved compatibility, improving linearity of wind to improve cooling efficiency of a fan when the present invention is coupled to a rear safety net of the fan which is conventionally used. More specifically, the present invention can be rapidly and easily fixated and coupled to a coupling unit through an elongated hole and a fastener to be used without an effect of a diameter of the circumference of the rear safety net of the net which is conventionally used.

Description

FUNCTIONAL PROTECTIVE NET OF ELECTRIC FAN IMPROVED COMPATIBILITY [0002]

The present invention relates to a coupling structure of a functional front safety net of an electric fan, and more particularly, to a front safety net of an electric fan, A coupling structure for coupling a functional front safety net having improved air velocity through a fastening member that is detachably coupled to the coupling member, wherein the fixing clip includes a fastener insertion groove having a shape corresponding to the fastener, And a rim of the rear safety net so that the rim of the rear safety net can be seated and supported. The functional front safety net includes a front safety net to secure the straightness of wind generated when the wing rotates, A ring-shaped guide whose rear surface is open and which has a predetermined width, A plurality of protective fingers formed on a front surface of the guide so as to be bent vertically outwardly from a rear edge of the guide and having a predetermined width so as to support the rear safety net in close contact with the rim of the rear safety net, And an engaging portion formed with a plurality of elongated holes through which fasteners that are detachably coupled with the fixing clip closely attached to the rim are engaged. The functional front safety net and the rear safety net are engaged with each other so that the engaging portion and the rear safety net are in close contact with each other, The position of the fastening member to be inserted therethrough is adjusted according to the diameter of the rear safety net and is then coupled with the fixing clip so that the fan can be fixedly connected without being influenced by the diameter of the rear safety net of the fan, Of the functional front safety net The.

Generally, a fan used in a home or office is a machine that generates wind by electricity, and it is a household appliance which is widely used in a hot summer.

Such a fan has a problem in that wind is spread widely and can not be transmitted to the far side because the rotary blade is rotated according to driving of the motor to blow the air introduced from the rear side to the front side to provide cool wind to summer users.

To overcome the disadvantages of such a fan, air conditioner is used, but it is expensive, but since it is an expensive product, there is a problem that the energy cost is low due to low energy efficiency, and the air conditioner and the fan are simultaneously operated, Air circulation is more actively induced, so that the cooling efficiency of the air conditioner tends to be reduced and the power consumption is reduced.

However, there is a problem in that the air circulation ability deteriorates because the wind of the fan is spread widely, so that the wind can not be transmitted far away. In order to solve this problem, an air circulator having an excellent direct- The air circulator needs to be purchased separately, resulting in a problem that the purchase cost is further increased.

Registered Utility Model No. 20-0473769 of Korea Registered (Ring for Combining Fan Safety Net) Korean Registered Utility Model No. 20-0469802 (Front protective cover of electric fan)

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems and it is an object of the present invention to provide a functional front safety net structure capable of quickly and easily connecting to a rear safety net of an electric fan, The purpose is to provide.

It is another object of the present invention to provide a joining structure of a functional front safety net of an electric fan configured to be able to be fixedly connected without being influenced by a diameter of a back side safety net of a fan that has been used in the past.

Further, it is an object of the present invention to prevent the cooling efficiency from being deteriorated by causing the wind between the end portion of the blade and the inner circumferential surface of the front safety net frame to smoothly escape to the outside without scattering.

In order to achieve the above object, according to the present invention, there is provided a fan assembly for a fan, which removes the front safety net of a fan in use and removes a plurality of fixing clips from the rear safety net, A fastening structure for fastening a functional front safety net to improve a wind speed, the fastening clip comprising: a fastening hole insertion groove having a shape corresponding to a fastening hole so that a fastening hole can be inserted therein; And the functional front safety net is formed with front and rear openings and a predetermined width so as to secure the straightness of the wind generated during the rotation of the wings and to improve the wind speed of the fan, A plurality of guide projections formed on the front surface of the guide so as to protect the vanes; And a fixing clip which is formed in a predetermined width so as to be in contact with the rim of the rear safety net so as to support the rear safety net and is closely attached to the frame of the rear safety net, Wherein a position of the fastening member inserted through the elongated hole is defined as a position of the rear safety net after the functional front safety net and the rear safety net are engaged so that the engaging portion and the rear safety net are in close contact with each other, So that the fixing clip can be engaged without being influenced by the diameter of the rear safety net rim of the fan which is being used.

In addition, in the present invention, the fixing clip may include a first body formed in a predetermined shape so as to be in close contact with an outer circumferential surface of the engaging portion and having the fastener insertion groove formed at the center thereof, And a second body extending to form an edge fitting groove therebetween.

In addition, in the present invention, the fastener uses a bolt, and a nut is inserted into the end portion of the bolt at the rear of the fastening clip to join the functional front safety net and the rear safety net, and the nut can be fastened by hand So that the user can tightly tighten the nut without tightening tools.

According to the present invention, the bolt is a bolt having an angled head, the elongated hole has a width corresponding to the width of the head, and a width of the outlet is narrower than a width of the head, When the bolt is inserted into the elongated hole in a state in which the rear safety net is engaged, the head is firmly fixed to the inner circumferential surface of the inlet side of the elongated hole, thereby fixing the nut easily.

According to another aspect of the present invention, there is provided a functional front safety net having a diameter smaller than that of the guide, and a split ring having a predetermined width extending from the protective fence.

According to the present invention as described above, it is possible to improve the cooling efficiency of the fan by increasing the straightness of the wind when the fan is coupled to the rear safety net of the fan, which is being used in the past. Particularly, It is advantageous in economical efficiency and practicality because it can be used in a fast and easily fixed combination without being affected by the diameter of the rear safety net rim.

Further, since the width of the long hole is formed so as to correspond to the width of the head part constituting the fastener, the fastening operation can be easily performed because the bolt is fixed when the nut is fastened. Can be directly fastened by hand without a separate tightening tool, which is advantageous in maximizing workability.

In addition, there is an advantage that the air blowing distance can be increased by allowing the wind between the end of the blade and the inner circumferential surface of the guide through the split ring to escape outward in the form of a straight line without scattering.

1 is an exemplary view of a general fan;
Fig. 2 is an illustration of a functional front safety net of an electric fan having excellent compatibility according to the present invention; Fig.
3 is an exemplary view for explaining a fixing clip according to the present invention;
Figures 4-7 illustrate examples of a method of combining a functional front safety net and a back side safety net according to an embodiment of the present invention.
8A-8B illustrate an example of a split ring formed in a functional front safety net of an electric fan with improved compatibility according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a functional front safety net for an electric fan having excellent compatibility according to the present invention will be described in detail with reference to the accompanying drawings.

In describing the present invention, the functional front safety net is coupled to the rear safety net provided on the rear side of the fan, and the present invention is characterized in that the wind formed during the rotation of the fan of the fan is passed through the guide to improve the straightness, And it is also possible to install it on the rear safety net of the fan which is used in the past, so that it is excellent in practicality and economical efficiency. In particular, the compatibility is maximized so as to be fixedly connected without being influenced by the diameter of the rear safety net rim.

2 is an illustration of a functional front safety net according to the present invention. The functional front safety net 100 according to the present invention is attached to a rear safety net 2 of an electric fan through a fixing clip and a fastening member to be described later and includes a guide 110, (130).

The guide (110) is a ring body having a front and a rear open and formed with a predetermined width so as to secure the straightness of the wind generated when the vane (1) rotates, thereby improving the efficiency of the fan. (For example, a funnel shape) that gradually narrows from one side (front side) to the other side (rear side) in order to secure the straightness of the generated wind and improve the efficiency of the fan.

The reason why the guide 110 is formed to be gradually narrowed from one side to the other is to use the Bernoulli's theorem. According to this, when the same amount of wind (fluid) is introduced, While the pressure is lowered, the speed of the wind (flow velocity) increases as the cross-sectional area of the guide becomes smaller.

The protective fins 120 are formed on the front surface of the guide 110 so as to protect the wings 1 and the wind formed through the wings 1 can vortex out As shown in FIG.

FIG. 1 is a schematic view of a general fan according to the related art. As shown in FIG. 1, the conventional fan has a protective cover 4 formed of metal or synthetic resin, A protective fence 5 in a linear shape in a radial direction is provided between the corners of the fan so as to protect the blade 1 of the fan and to prevent accidents in which infants and young children put their fingers in.

The protective fence 5 provided on the front safety net of the conventional fan simply protects the fan 1, prevents safety accidents of young children, and allows the wind generated during rotation of the fan to spread out widely However, when the wind hits the protection flesh, the frictional force is generated and the efficiency of the fan is decreased due to the decrease of the wind speed and the decrease of the air volume.

The protective spiral 120 according to the present invention protects the wing of the fan, which is the object of protection of the conventional fan, and prevents the safety accident of the child, as well as the wind formed during the rotation of the wing, So as to reduce the frictional resistance and improve the wind speed.

In addition, according to the present invention, the protection fence 120 is gradually formed thicker from the rear to the front, so that the inner diameter of the passage through which the wind is discharged is gradually narrowed so that the wind is not scattered Can be expected. The reason why the protective fence 120 is formed to be gradually thicker from the rear to the front is to reduce the frictional resistance when the wind passes and to use the Bernoulli's theorem, .

The joining portion 130 is in the form of a band formed by bending vertically outwardly from the rear edge of the guide 110 and is in close contact with the rim 3 of the rear safety net to support the rear safety net 2. [ And an elongated hole 131 through which a fastener 300 detachably coupled with the fastening clip 200 closely attached to the rear safety net rim 3 is formed.

There is a slight difference in the diameter of the rear safety net rim 3 depending on the manufacturer of the fan currently used in homes or businesses. Therefore, when the functional front safety net 100 according to the present invention is mated with the rear safety net 2 of the fan in use, the fixing clip 200, which is fitted to the rear of the rear safety net frame 3 according to the diameter of the rear safety net, May be slightly different from each other.

However, if a bolt hole is formed in the coupling part 130 instead of an elongated hole, a threaded part passing through the bolt hole may not be inserted into the fastener insertion hole according to the position of the bolt hole.

In other words, since the front safety net and the rear safety net can be engaged only when the position of the bolt hole and the diameter of the rear safety net face correspond to each other, there is a problem that practicality is significantly reduced. Of course, a plurality of bolt holes may be arranged, and fasteners may be inserted into the bolt holes formed at positions corresponding to the fastener insertion grooves, but since the diameter of the rear safety net rim is slightly different for each manufacturer, there is a problem.

The present invention is characterized in that the functional front safety net 100 and the rear safety net 2 are engaged and then inserted into the long hole 131 without considering the position of the fastening hole and then fixed with the fixing clip 200 and the nut 400 It is possible to perform the fastening operation without being influenced by the diameter of the rear safety net rim 3 of the fan, which is being used in the past.

In the present invention, the elongated holes 131 may be formed in a plurality of spaced apart intervals along the coupling portion so as to further increase the binding force between the functional front safety net 100 and the rear safety net 2. For example, A total of four long holes (hereinafter referred to as 12 o'clock, 3 o'clock, 6 o'clock and 9 o'clock positions) can be formed.

Next, the fixing clip 200 includes a fastening hole insertion groove 210 having a shape corresponding to the fastening hole at one side thereof so that the fastening hole can be inserted therein, and a fastening hole insertion groove 210 corresponding to a rim so that the rim of the rear safety net can be seated and supported. A frame fitting groove 220 is formed.

FIG. 3 is an exemplary view of a fixing clip according to an embodiment of the present invention. The fixing clip is formed in a predetermined shape (shown as a rectangular shape in FIG. 3) so as to be in close contact with the outer circumferential surface of the coupling part 130, A first body 211 having the fastener insertion slot 210 formed therein and a second body 211 extending from the bottom surface of the first body to form a frame fitting groove 220 therebetween, 221).

The fixing clip 200 may be formed of a lightweight material so as to prevent breakage of the fixing clip 200. The vertical side of the second body 221 may be wobbled when the rim of the rear safety net is inserted. So that they can be stably supported.

In the present invention, the fastener 300 uses bolts and a nut is used together to improve the binding force.

4 and 5, when the functional front safety net 100 and the rear safety net 2 are fastened together, the functional front safety net 100 and the rear side safety net 100 are closely contacted with each other, Connect safety net (2). Next, the fixing clip 200 is engaged in the rear of the rear safety net so that the rear safety net rim 3 is fitted into the fitting groove 220 of the fixing clip. Then, when a fastener 300 (hereinafter referred to as a bolt) is inserted to penetrate the long hole 131, the end of the bolt is exposed through the fastener insertion groove 210. A screw thread may be formed on the inner circumferential surface of the fastener insertion slot 210. In the case where threads are formed, the functional front safety net and the rear safety net can be fastened only by the combination of the bolt and the fixing clip, The binding force can be further improved.

The nut 400 may be a nut such as a butterfly nut, an eye nut, a cap nut, a wing nut, or a T-nut, which can be tightened with a finger without a user's separate tightening tool. It is possible to perform the fastening operation with excellent binding force only by using the finger without using the fastening tool.

Meanwhile, when the bolt 300 is inserted into the elongated hole 131, for example, when the butterfly nut is tightened, the bolt 300 is not fixed in the elongated hole, have. In order to prevent such a problem, according to the present invention, as shown in FIG. 7, the bolt 300 'is formed with a bolt having an angle at the head, and the width of the entrance of the bolt hole 131' is formed to correspond to the width of the head And the width of the outlet is narrower than the width of the head.

When the bolt 300 'is formed with an angle at its head portion and the width of the entrance of the long hole 131' is made to correspond to the width of the head portion, when the bolt is inserted into the long hole, It is possible to easily fix the nut 400 on the rear side while being tightly fixed to the inner circumferential surface of the inlet side of the long hole and to tighten the nut with a stronger force.

8A to 8B, the front surface of the functional front safety net according to the present invention is formed with a diameter shorter than that of the guide, and a split ring 140 having a predetermined width for connecting the protective fingers is disposed in front and rear Respectively.

Assuming that the first wind outflow port from the protective fence fixing plate 150 provided on the front surface of the functional front safety net to the split ring 140 and the second wind outflow port from the split ring 140 to the guide 110, The wind on the front side of the wing during rotation is discharged through the first wind outlet and the wind between the end of the wing and the inner circumferential surface of the guide is discharged through the second wind outlet.

The front safety net of the conventional fan is separated from the protection fence and the protection fence by a predetermined distance so that the wind is released through the space between the protection fence and the protection fence. The wind on the front side of the blades secures straightness through the rotational force of the blades, However, there is a problem that the wind between the end portion of the blade and the inner circumferential surface of the front safety net has no straightness and is scattered in the radial direction, thereby causing loss.

The split ring 140 according to the present invention guides the wind between the end of the blade and the inner circumferential surface of the guide 110 to come out in the form of a straight line without being scattered and becomes gradually thicker from the rear toward the front, It is possible to obtain an effect of increasing the wind speed and air volume by making the inner diameter of the passage gradually narrow. The reason why the split ring 140 is formed to be gradually thicker from the rear toward the front is to use the Bernoulli's theorem in order to reduce frictional resistance when the wind passes, Omit it.

A method of combining the functional front safety net of the fan according to the present invention with the rear side safety net of the fan, which has been used in the past, will now be described.

First, remove the front safety net of the old fan.

Next, the functional front safety net 100 and the rear safety net 2 are engaged with each other so that the rim 3 of the rear safety net is closely attached to the coupling part 130. [

Next, the fixing clip 200 is inserted into the edge fitting groove 220 so that the edge 3 of the rear safety net is closely contacted, and then the fastening hole 200 is inserted into the hole 131 or 131 ' (300 or 300 ').

When the nut 400 is fastened to the end of the fastener 300 or 300 ', the fastening clip 200 is brought into close contact with the fastening part 130 and the functional front safety net 100 and the rear safety net 2 are fixed .

The present invention as described above can maximize the cooling efficiency of the fan by increasing the straightness of the wind when using the fan, and it is possible to maximize the cooling efficiency of the fan. Particularly, It is advantageous in economical efficiency and practicality because it can be quickly and easily fixedly connected without being influenced by the diameter of the rear safety net of the fan that was used in the past.

1: wing
2: Rear safety net
3: Border of rear safety net
4: Protective plate
5: Protective Flesh
100: Functional safety net
110: Guide
120: Protective Flesh
130:
131, 131 ': long hole
140: split ring
150: Protective plate
200: Fixing clip
210: Fastener insertion groove
220: Rim fit groove
300, 300 ': Fastener
400: nut

Claims (5)

The front safety net of the existing fan is removed, and a functional front safety net with a plurality of fixing clips and a fastening member detachably coupled to the fixing clip is installed at the rim of the rear safety net provided on the rear surface of the fan In the coupling structure,
The fixing clip 200 includes a fastening hole insertion groove 210 having a shape corresponding to that of the fastening hole so that the fastening hole can be inserted therein, (220)
The functional front safety net (100) includes a ring-shaped guide (110) having a predetermined width and having front and rear openings for securing straightness of wind generated when the wing rotates to improve the wind speed of the fan, A plurality of protective fingers 120 formed on the front surface of the guide so as to protect the wing, and a plurality of protective fingers 120 which are bent vertically outwardly from the rear edge of the guide and closely contact the rim of the rear safety net, And a plurality of elongated holes (131) through which fasteners (300) for detachable connection with the fastening clip (200), which is formed in a predetermined width so as to be in close contact with the rear safety net rim, are formed,
The position of the fastener inserted through the elongated hole is adjusted according to the diameter of the rear safety net and is then coupled with the fixing clip so that the functional front safety net and the rear safety net are engaged with each other, Wherein a fixed connection is possible without being influenced by the diameter of the rear safety net of the fan.
[2] The apparatus of claim 1, wherein the fixing clip has a first body (211) formed in a predetermined shape so as to be in close contact with an outer circumferential surface of the coupling portion and having the coupling hole insertion groove (210) And a second body (221) extending from the bottom surface of the first body (21) to form a rim fit groove (220) therebetween.
The connector according to claim 1, wherein the fastener uses a bolt,
Inserting a nut at the end of the bolt at the rear of the securing clip to engage the functional front safety net and the back side safety net,
Wherein the nut is made of a nut made of a material that can be directly fastened by hand so that the user can tightly fasten the nut without using a fastening tool.
4. The apparatus of claim 3, wherein the bolt is a bolt having an angled head,
Wherein the elongated hole is formed so that the width of the inlet corresponds to the width of the head and the width of the outlet is narrower than the width of the head,
Wherein when the bolt is inserted into the elongated hole in a state where the functional front safety net and the rear safety net are engaged with each other, the head is tightly fixed to the inner circumferential surface of the inlet of the elongated hole to securely fix the nut. Combined structure of functional front safety net.
The functional front safety netting according to claim 1, wherein the front surface of the functional front safety net has a diameter shorter than that of the guide, and a split ring having a predetermined width extending from the protective fence extending from the protective fence, Lt; / RTI >

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