JP2019521280A - A compatible fan functional front safety net - Google Patents

Abstract

The present invention can improve the cooling efficiency of the fan by increasing the straightness of the wind if it is connected to the rear safety net of the fan that is already in use, and particularly through the long hole and the fastener formed in the connecting part. Disclosed is a functional front safety net of an electric fan having excellent compatibility that can be quickly and easily fixed and used without being affected by the diameter of the rear safety net frame of an existing fan.

Description

  The present invention relates to a front safety net of a fan, and more particularly, in a front safety net combined with a rear safety net provided on the rear face of a fan blade, the straightness of wind generated when the blade rotates is secured. Front and rear surfaces are opened to improve the efficiency of the fan, and a ring-shaped guide formed to a predetermined width and formed on the front surface of the guide to protect the blades And a plurality of bones, and are formed by bending vertically outward from the rear face frame of the guide, and in a predetermined width so as to be in close contact with the frame of the rear face safety net to support the rear face safety net A fastening clip closely attached to the rear safety frame and a joint portion formed with an elongated hole through which a fastener detachably coupled is formed, and a wind generated upon rotation of the blade goes straight while passing through the guide Sex is secured The wind speed of the fan can be improved, and the front safety net and the rear safety net are engaged so that the joint portion and the rear safety net are in close contact with each other, and the fastener inserted through the long hole is then inserted. By combining with a fixing clip, a functional compatible front safety net of a compatible fan characterized in that a fixed connection is possible without being affected by the diameter of the rear safety mesh frame of the fan currently in use. It is about

  In general, a fan used in a home or office is a machine that generates wind by electricity and is a home appliance often used in hot summer.

  Such a fan provides the user with a lonely wind in summer by rotating the rotating blades by the drive of the motor and blowing the air introduced from the back to the front side, and the wind spreads widely to the far side There was a problem that it was not transmitted.

  Although an air conditioner is used to overcome the disadvantages of such fans, there is a problem that an expensive product is low in energy efficiency and the cost due to the use of power is increased. Furthermore, by simultaneously moving the air conditioner and the fan to more actively guide the air circulation in the room, the cooling efficiency of the air conditioner can be improved and the amount of power consumption can be reduced.

  However, since the wind of the fan spreads widely and the wind can not be transmitted to a long distance, there is a problem that the circulating power of air is inferior, and to compensate for such a problem, recently, instead of the fan. Although an air circulator with excellent wind straightness is used, there is a problem in that additional purchasing costs are incurred because an air circulator has to be purchased separately.

  The present invention was invented to solve the above-mentioned problems, and can be quickly and easily coupled to the rear face safety net of the fan, and the straightness of the wind is ensured to improve the efficiency of the fan. Its purpose is to provide a front safety net for fans that can be

  Another object of the present invention is to provide a fan front safety net that can be fixedly coupled without being influenced by the diameter of the rear safety net of the fan currently in use.

  In addition, the frontal safety of the fan can be prevented from lowering the cooling efficiency by preventing the air between the end of the blade and the inner circumferential surface of the front safety screen frame from being scattered and coming out smoothly to the outside. Its purpose is to provide a network.

  For the above purpose, according to the present invention, in the front safety net combined with the rear safety net provided on the rear face of the fan blade, the straightness of the wind generated at the time of rotation of the blade is ensured to improve fan efficiency. And a ring-shaped guide formed to have a predetermined width so as to improve the front and rear surfaces, and a plurality of bones formed on the front of the guide so as to protect the blade. And the guide is formed to have a predetermined width so as to be vertically bent outward from the rear face frame of the guide, and in close contact with the frame of the rear face safety net to support the rear face safety net, the rear face safety net A fixed clip in close contact with the frame and a joint portion formed with an elongated hole through which a fastener that is detachably coupled is formed are formed, and the wind generated at the time of rotation of the blade is secured to go straight while passing through the guide Improved the wind speed of the fan By interlocking the front safety net and the rear safety net so that the connection portion and the rear safety net are in close contact with each other, by binding a fastener inserted through the long hole with the fixing clip It is characterized in that fixed coupling is possible without being influenced by the diameter of the rear safety screen frame of the fan currently in use.

  Also, in the present invention, the fixing clip may be supported by a fastener insertion groove having a shape corresponding to a fastener and a frame of the rear safety net so that the fastener can be inserted. It is characterized in that a frame fitting groove having a shape corresponding to the frame is formed so as to be able to.

  In the present invention, the fastener may be a bolt, and a nut may be inserted into the end of the bolt at the rear of the fixing clip to connect the front safety net and the rear safety net, and the nut may be directly fastened by hand. It is characterized in that it uses a nut manufactured in a possible application, whereby the user can firmly tighten and fix the nut even without a tightening tool.

  Also, in the present invention, the bolt is a bolt having an angled head, the elongated hole is formed such 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 When the bolt is inserted into the elongated hole in a state in which the front safety net and the rear safety net are engaged, the head is fixed in intimate contact with the inner peripheral surface on the inlet side of the elongated hole to fix the nut. It is characterized in that the work becomes easy.

  Further, according to the present invention, the front surface of the front safety net is formed with a diameter smaller than the diameter of the guide, and a dividing ring having a predetermined width for connecting the bone is formed extending from the bone.

  If the present invention configured as described above is connected to the rear face safety net of the fan currently in use, it can increase the straightness of the wind and improve the cooling efficiency of the fan, in particular, it is formed in the joint portion Fast and easy fixed connection can be used quickly and easily without being influenced by the diameter of the rear safety screen frame of the fan currently in use through the long hole and the fastener, and it is excellent in economy and practicability. is there.

  Further, according to the present invention, since the width of the elongated hole is formed to correspond to the width of the head constituting the fastener and the bolt is fixed when the nut is fixed, the fixing operation can be performed easily. There is an advantage that the workability can be maximized because the user can directly fasten by hand without a separate tightening tool through the nut provided with the handle in the part.

  In addition, since the wind between the end of the blade and the inner circumferential surface of the guide is not scattered through the dividing ring, the air blowing distance can be increased by coming out in the form of a straight line.

It is an illustration figure of a common fan. FIG. 2 is an illustration of a compatible fan functional front safety net according to the present invention. FIG. 5 is an exemplary view for explaining a fixing clip according to the present invention. FIG. 6 is an exemplary view showing a method of combining a front safety net and a rear safety net according to an embodiment of the present invention. FIG. 6 is an exemplary view showing a method of combining a front safety net and a rear safety net according to an embodiment of the present invention. FIG. 6 is an exemplary view showing a method of combining a front safety net and a rear safety net according to an embodiment of the present invention. FIG. 6 is an exemplary view showing a method of combining a front safety net and a rear safety net according to an embodiment of the present invention. FIG. 5 is an illustration of a split ring formed on the front safety net of the fan with improved compatibility according to the present invention; FIG. 5 is an illustration of a split ring formed on the front safety net of the fan with improved compatibility according to the present invention;

  Hereinafter, the functional front safety net of the compatible fan according to the present invention will be described in more detail with reference to the attached drawings.

  In the description of the present invention, the front safety net is combined with the rear safety net provided on the rear face of the fan blade, and the present invention enables the wind generated when the fan blade rotates to pass straight through the guide. The wind speed and distance can be increased, and it can be installed on the rear safety net of the fan currently in use, and it is excellent in practicality and economic efficiency, and is particularly affected by the diameter of the rear safety net frame. It is a technical feature that fixed coupling has maximized compatibility without being able to do so.

  FIG. 2 is an illustration of a front safety net according to the present invention. The front safety net 100 according to the present invention is in close contact with the rear safety net 2 of the fan and is coupled to a fixing clip and a fastener, which will be described later, and includes a guide 110, a bone 120 and a joint 130.

  The guide 110 is a ring formed with a predetermined width and open so as to improve the efficiency of the fan by securing the straightness of the wind generated when the blade 1 rotates, and the guide 110 is formed in a predetermined width A configuration that gradually narrows from one side (forward) to the other side (backward) so that the straightness of the wind generated when the fan blades rotate can be ensured to improve the efficiency of the fan. For example, it is formed in a funnel form.

  The guide 110 is formed to be gradually narrowed from one side to the other in order to use Bernoulli's theorem, according to which the same amount of wind (fluid) is used. The pressure of the passing wind decreases while the speed of the wind (flow velocity) increases as the cross-sectional area of the guide narrows.

  A plurality of bones 120 are formed on the front surface of the guide 110 so as to protect the blades 1 and formed in a spiral so that the wind formed through the blades 1 can escape to the outside while causing a vortex flow. Be done.

  FIG. 1 is an illustration of a conventional general fan, and as shown in FIG. 1, a bone fixing plate 4 made of metal or synthetic resin is provided at the center of the front of the conventional fan. Between the corners of the front safety net, radial straight bones 5 are provided to protect the fan blades 1 and to prevent injuries caused by infants and children putting fingers on them.

  The bone 5 provided in the front safety net of the conventional fan simply protects the fan blade 1 of the fan, prevents children's accident, and allows the wind generated at the time of the blade rotation to escape outside while spreading widely. However, when the wind strikes a bone and friction occurs, the wind speed decreases, and the air volume decreases, resulting in a decrease in the efficiency of the fan.

  The helical bone 120 according to the present invention not only protects the fan blade of the fan which is the purpose of such conventional fan bones and prevents children's accident, but also the wind generated at the time of the blade rotation spirals into a spiral. It has the function of reducing the frictional resistance and improving the wind speed by pulling out to the outside while raising.

  Also, according to the present invention, the bone 120 is formed to be thicker gradually as it goes from the rear to the front so that the inner diameter of the passage through which the wind is discharged becomes gradually narrower. You can expect the effect of getting out. The reason why the bone 120 is gradually thickened as it goes from the rear to the front is to reduce the frictional resistance when the wind passes like the guide and to use Bernoulli's theorem. Detailed explanation is omitted.

  Next, the connecting portion 130 may be formed in a belt shape vertically bent outward from the rear surface frame of the guide 110 and may be in close contact with the frame 3 of the rear surface safety net to support the rear surface safety net 2 A long hole 131 is formed so as to have a predetermined width so as to allow the fastener 300 to be detachably coupled to the fixing clip 200 in close contact with the rear safety mesh frame 3.

  At present, fans used in homes and shops have minute differences in the diameter of the rear safety frame 3 depending on the manufacturer. Therefore, when the front safety net 100 according to the present invention is engaged with the rear safety net 2 of the fan currently in use, the position of the fixing clip 200 inserted behind the rear safety net 3 according to the diameter of the rear safety net Height) may be slightly different.

  However, when a bolt hole that is not a long hole is formed in the coupling portion 130, there is a possibility that the screw portion penetrating the bolt hole can not be inserted into the fastener insertion groove depending on the position of the bolt hole.

  In other words, since the front safety net and the rear safety net can be fastened only when the positions of the bolt holes correspond to the diameters of the rear safety net, the practicality is significantly reduced. Of course, a plurality of bolt holes may be arrayed and the fasteners may be inserted into the bolt holes formed at the positions corresponding to the fastener insertion grooves, but the diameter of the rear safety screen frame may differ little by little for each manufacturer. Because there is a problem in forming the bolt holes in the correct position.

  According to the present invention, after the front safety net 100 and the rear safety net 2 are engaged, it is not necessary to consider the position (height) of the fastener, and after inserting into the long hole 131, fixing with the fixing clip 200 and the nut 400 is sufficient. Since the fastening operation is possible without the influence of the diameter of the rear safety screen 3 of the fan currently in use, the compatibility is remarkably excellent.

  In the present invention, the elongated holes 131 may be formed in a plurality at predetermined intervals along the connection portion, for example, 90 so as to further increase the binding force of the front safety net 100 and the rear safety net 2. A total of four elongated holes (hereinafter referred to as 12 o'clock, 3 o'clock, 6 o'clock, and 9 o'clock positions) can be formed at intervals of 0 °.

  Next, the fixing clip 200 has a fastener insertion groove 210 having a shape corresponding to the fastener on one side so that the fastener can be inserted, and the frame of the rear safety net is seated and supported. In order to be able to move, a frame and a groove 220 corresponding to the frame are formed.

  FIG. 3 is an exemplary view of a fixing clip according to an embodiment of the present invention, wherein the fixing clip is formed in a predetermined shape (shown as a square in FIG. 3) so as to be in close contact with the outer peripheral surface of the coupling portion 130. A first body 211 in which the fastener insertion groove 210 is formed in the center, and a second body extending in a “延長” shape from the bottom surface of the first body to form a frame fitting groove 220 therebetween And the body 221.

  The fixing clip 200 preferably has a strength and is made of a lightweight material to prevent breakage at the time of fastening, and the vertical side of the second body 221 is inserted when the frame of the rear safety net is inserted. It is preferable to form in corresponding length so that it can be stably supported without being bent inside.

  In the present invention, the fastener 300 uses a bolt and a nut together so that the cohesion can be improved.

  Referring to FIGS. 4 to 5, when the front safety net 100 and the rear safety net 2 are fastened, first, the front safety net 100 and the rear safety net 2 are bitten so that the coupling portion 130 and the rear safety net 2 come into close contact. Match. Next, the fixing clip 200 is joined behind the rear safety net so that the rear safety net frame 3 is fitted into the frame fitting groove 220 of the fixing clip. Thereafter, when the fastener 300 (hereinafter referred to as a bolt) is inserted so as to penetrate the long hole 131, the end of the bolt penetrates the fastener insertion groove 210 and is exposed to the outside. A screw thread may be formed on the inner circumferential surface of the fastener insertion groove 210, and in the case where a screw thread is formed, the front safety net and the back safety net may be fastened only by the connection of the bolt and the fixing clip. It is also possible to insert a nut at the end of the bolt to further improve the cohesion.

  The nut 400 may be a nut that can be operated by the user without finger tightening, such as a wing nut, an eye nut, a gap nut, a wing nut, or a T-nut. The user can perform the fastening operation with good cohesion force with only a finger without using a separate fastening tool.

  On the other hand, when the bolt 300 is tightened with the bolt 300 inserted in the long hole 131, for example, the bolt 300 may not rotate in the long hole and may rotate with the wing nut. . In order to prevent such problems, according to the present invention, as shown in FIG. 7, the bolt 300 'uses an angled head, and the long hole 131' has an inlet width of the head The width of the outlet is narrower than the width of the head.

  When the width of the entrance of the long hole 131 'is made to correspond to the width of the head by using the bolt 300' having a corner with the head, when the bolt is inserted into the long hole The head is fixed in close contact with the inner peripheral surface on the inlet side of the elongated hole, and the operation of fixing the nut 400 at the rear can be facilitated, and the nut can be tightened with a stronger force, thus improving the cohesion. It has the advantage of being able to

  Next, referring to FIGS. 8a to 8b, a dividing ring 140 of a predetermined width formed on the front surface of the front safety net according to the present invention and having a shorter diameter than the guide and connecting the bones is disposed on the front and back of the bones. It is extended and formed.

  Assuming that the bone fixing plate 150 provided on the front of the front safety net from the split plate 140 to the first wind outlet, and the split ring 140 to the guide 110 as the second wind outlet, the forward of the blade when the blade rotates The side wind is discharged through the first wind outlet, and the wind between the end of the blade and the inner circumferential surface of the guide is discharged through the second wind outlet.

  The front safety net of the conventional fan has a certain distance between bones and bones, and the wind escapes from the space between them, but the wind on the front side of the blade is straightened by the rotational force of the blade and compared Smooth out in linear form. Furthermore, there is a problem that the wind between the end of the blade and the inner circumferential surface of the front safety net does not go straight and scatters in the radial direction, causing a 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 escape in a straight line without splashing, and is gradually thickened from the rear to the front to discharge the wind. By making the inner diameter of the passage to be gradually narrowed, it is possible to obtain the effect of increasing the wind speed and the air volume. The dividing ring 140 is formed to be gradually thicker as it goes from the rear to the front, in order to reduce the frictional resistance when the wind passes like the guide 110 and to use Bernoulli's theorem. Detailed explanation is omitted.

  The method of combining the front safety net of the fan according to the present invention as described above with the rear safety net of the fan currently in use will be described as follows.

  First, separate the front safety net of the fan currently in use.

  Next, the front safety net 100 and the rear safety net 2 are engaged so that the frame 3 of the rear safety net is in close contact with the coupling portion 130.

  Next, the fixing clip 200 is fitted into the frame fitting groove 220 so that the frame 3 of the rear safety net adheres closely, and then the long hole 131 (or 131 ') and the fastener insertion groove 210 are fastened so as to penetrate Insert the device 300 (or 300 ').

  Thereafter, the nut 400 is inserted into the end of the fastener 300 (or 300 ') and tightened, so that the front safety net 100 and the rear safety net 2 are fixedly coupled while the fixing clip 200 is in close contact with the coupling portion 130. .

  As described above, the present invention can be easily coupled to the rear face safety net of a fan currently in use, and in use, the straightness of the wind is increased to maximize the cooling efficiency of the fan. In particular, it can be used quickly and easily in a fixed manner without being influenced by the diameter of the rear safety screen frame of the fan currently in use through the elongated holes formed in the joint and the fastener. It has the merit of being excellent in economy and practicability.

1: wing 2: rear safety net 3: rear safety net frame 4: bone fixation plate 5: bone 100: front safety net 110: guide 120: bone 130: joint 131, 131 ': slotted hole 140: split ring 150 Bone fixing plate 200: Fixing clip 210: Fastener insertion groove 220: Frame fitting groove 300, 300 ': Fastener 400: Nut

Claims (5)

In the front safety net combined with the rear safety net provided on the rear face of the fan blade,
A ring-shaped guide (110) formed with a predetermined width and open so as to open front and rear surfaces so that the straightness of the wind generated when the blades rotate can be ensured and the efficiency of the fan can be improved;
A plurality of bones (120) formed on the front of the guide so as to be able to protect the wings;
The guide is formed to have a predetermined width so that it can be vertically bent outward from the rear frame of the guide and can be in close contact with the frame of the rear safety net to support the rear safety net. Including a securing clip in intimate contact and a coupling portion (130) in which an elongated hole is formed through which a removably coupled fastener is formed;
Straightness is ensured while the wind generated at the time of rotation of the blades passes through the guide, and the wind speed of the fan can be improved.
The front safety net and the rear safety net are meshed so that the joint portion and the rear safety net are in close contact with each other, and a fastener inserted through the elongated hole is bound with the fixing clip, and the existing in-use A functional compatible front safety net of a compatible fan characterized in that fixed connection is possible without being influenced by the diameter of the rear safety net frame of the fan.   The fixing clip includes a fastener insertion groove having a shape corresponding to a fastener so that the fastener can be inserted, and a frame so that the frame of the rear safety net can be seated and supported. A functional fan as claimed in claim 1, characterized in that a frame inset groove of corresponding shape is formed. The fastener uses a bolt,
A nut is inserted into the end of the bolt at the rear of the fixing clip to connect the front safety net and the rear safety net,
By using a nut manufactured in an application that can be directly fastened by hand, the nut can be firmly tightened and fixed without using a tightening tool by the user. Functional fan front safety net with good compatibility as described in. The bolt is a bolt having an angled head,
The elongated hole is formed such that the width of the inlet corresponds to the width of the head, and the width of the outlet is formed narrower than the width of the head,
If the bolt is inserted into the long hole in the state that the front safety net and the rear safety net are engaged, the head is fixed in intimate contact with the inner peripheral surface on the entrance side of the long hole and the operation of fixing the nut is facilitated The functional front safety net of a compatible fan according to claim 3, characterized in that: The compatibility according to claim 1, wherein the front surface of the front safety net is formed with a diameter smaller than the diameter of the guide, and a split ring having a predetermined width is formed extending from the bone. Functional front safety net of fan.

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