KR20160118057A - A unit for engaging safety-grill and electric fan having the same - Google Patents

A unit for engaging safety-grill and electric fan having the same Download PDF

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Publication number
KR20160118057A
KR20160118057A KR1020150046324A KR20150046324A KR20160118057A KR 20160118057 A KR20160118057 A KR 20160118057A KR 1020150046324 A KR1020150046324 A KR 1020150046324A KR 20150046324 A KR20150046324 A KR 20150046324A KR 20160118057 A KR20160118057 A KR 20160118057A
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KR
South Korea
Prior art keywords
ring
coupling
frame
coupled
safety net
Prior art date
Application number
KR1020150046324A
Other languages
Korean (ko)
Inventor
김용욱
Original Assignee
신일산업 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 신일산업 주식회사 filed Critical 신일산업 주식회사
Priority to KR1020150046324A priority Critical patent/KR20160118057A/en
Publication of KR20160118057A publication Critical patent/KR20160118057A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

A motor housing rotatably installed on an upper portion of the stand and provided with a wing driving motor for rotating the rotary wing therein; a motor housing provided on an upper portion of the stand for rotatably supporting the motor housing and the wing driving motor; And a main operating unit installed in the motor housing for selecting a driving operation of the motor housing and the blade driving motor.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a safety net coupling unit,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an electric fan, and more particularly, to a safety net coupling unit for coupling and detachably connecting a safety net for covering and protecting a rotary blade of a fan, and a fan including the same.

[0002] Generally, a vacuum cleaner includes a base portion that is placed on a support surface, a stand portion that is installed upright on an upper portion of the base portion, a motor housing that is rotatably installed on the upper portion of the stand portion, And a safety net surrounding the wings.

In this configuration, the safety net usually has a dome-shaped front safety net symmetrical to the front and rear sides, a rear safety net and a coupling unit for bringing the front and rear safety net into contact with each other.

One example of such a coupling unit is disclosed in Korean Registered Utility Model No. 20-0473769. In the conventional coupling unit, forward and rearward braking tails are formed on the inside of the ring body so that the front safety net and the rear safety net are combined in a so-called interference fit manner to prevent the escape of the front and rear safety nets. So that it is inserted into the groove formed in the side plate and fixed.

However, in the case of the conventional safety net coupling unit having the above-described structure, the safety net must be forcefully applied to the lower portion of the ring body through the forward and rear bracing bosses formed inside the ring body to be hooked. In addition, when separating, it is necessary to apply a strong force to the safety net so as to protrude to the outside beyond the front and rear bouncing jaws. Such a safety net is very troublesome to assemble and separate.

Further, when the separating and assembling operation is repeatedly performed, it often occurs that the safety net is deformed, or the preventive wrist is worn or damaged and can not function.

Korean Registered Utility Model No. 20-0473769 (Ring body for connecting safety net of electric fan)

SUMMARY OF THE INVENTION It is an object of the present invention to provide a safety net coupling unit improved in structure for facilitating assembling and separating of a safety net and a fan including the same.

In order to achieve the above object, a safety net coupling unit of the present invention comprises a ring-shaped ring frame coupled to one of a front safety net and a rear safety net to cover and protect a rotary vane of a fan, And an arcuate frame having a circular arc shape and coupled to the other one of the front safety net and the rear safety net with a larger coupling force, wherein the ring frame and the arc frame relatively approach each other in a direction crossing the rotation axis of the rotary blades, .

Here, the ring frame may include a ring-shaped frame body; A first ring coupling portion extending in the width direction in the frame body and formed in a part of the circumferential direction in a part of the circumference, the front and rear safety nets being all connected; A first ring coupling portion extending in the width direction of the frame body so as to be spaced apart from the first ring coupling portion in a circumferential direction and having a width smaller than that of the first ring coupling portion, A second ring-shaped portion of the second ring-shaped portion; And a first fastening part provided on the frame body and fastened to the arc fastening part.

The first ring engagement portion may include a first ring engagement groove in which an engagement ring of the front and rear safety nets is fitted and coupled to the inner circumference of the first ring engagement portion and a second ring engagement groove in which the other engagement ring is engaged, So that they are successively formed to be adjacent to each other.

In addition, a third ring coupling groove is formed in the inner periphery of the second ring coupling portion to be engaged with a coupling ring of a safety net coupled to the first ring coupling groove, and the first ring coupling groove and the third ring coupling groove It is preferable that a first elastic hook for suppressing separation of the fitted coupling ring is provided so as to protrude toward the first ring engagement groove and the third ring engagement groove side.

In addition, the arcuate frame may include a four-ring coupling groove to which a coupling ring coupled to the first and third ring coupling grooves is coupled when the ring frame is engaged with the ring frame; A fifth ring coupling groove to which a coupling ring coupled to the second ring coupling groove is coupled; And a second resilient hook protruding from the fifth ring-coupled ring side to suppress separation of a coupling ring coupled to the fifth ring-coupled groove.

In addition, a ring frame assembly groove portion is formed in the arc frame such that the fourth ring groove is circumferentially short-circuited so as to complementarily couple the second ring coupling portion. The arc frame has a first fastening portion and a second fastening portion, And a second fastening portion which is overlapped and joined.

According to another aspect of the present invention, there is provided an electric fan including: a stand unit vertically installed on a base; A motor housing rotatably mounted on an upper portion of the stand and having a drive motor installed therein; A rotary blade installed on a rotary shaft of the drive motor; And a safety net coupling unit according to any one of claims 1 to 6.

According to the safety net coupling unit and the electric fan including the safety net coupling unit of the present invention, the front safety net and the rear safety net of the fan can be assembled and disassembled in the up-and-down sliding manner, There is an advantage that the safety net can be easily separated and assembled.

1 is a perspective view illustrating a fan according to an embodiment of the present invention.
2 is a side view of the fan shown in Fig.
Fig. 3 is a side view showing the main part of the fan shown in Fig. 1. Fig.
4 is a perspective view showing the ring frame of the safety net coupling unit shown in Fig.
FIG. 5 is a perspective view showing an arc frame of the safety net coupling unit shown in FIG. 1. FIG.
6 is a sectional view taken along the line I-I in Fig.
7 is a cross-sectional view taken along the line II-II in Fig.
8 is a sectional view taken along the line III-III in Fig.
Fig. 9 is a front view showing a state before coupling the safety net coupling unit. Fig.
10 is a front view of the safety room coupling unit in the coupled state.
Fig. 11 is a view showing the state of the front and rear safety chambers in the state of Fig. 9. Fig.
12 is a cross-sectional view showing the state of the first and second fastening portions of the safety net coupling unit in the coupled state.
13 is a perspective view showing a safety net coupling unit in a coupled state.

Hereinafter, a safety net coupling unit and a fan including the safety net coupling unit according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 to 13, an electric fan 100 according to an embodiment of the present invention includes a base 110, a stand 120, a motor housing 130, a rotary vane 140, And a safety net coupling unit 160 for connecting the front and rear safety nets 151 and 153 and the front and rear safety nets 151 and 153 in contact with each other.

The base 110 supports the whole of the fan 100 and has a flat structure at the bottom so as to be supported by the bottom surface and various shapes at the top.

The stand 120 is installed upright on an upper portion of the base 110 to support the motor housing 130. The stand 120 includes a lower stand 121 coupled to the base 110 and an upper stand 123 connected to the upper portion of the lower stand 121 to be slidable up and down. A motor housing 130 is rotatably connected to the upper end of the upper stand 123. To this end, a rotating motor (not shown) for rotating the motor housing 130 is installed on the upper end of the upper stand 123.

The motor housing 130 is rotatably installed on an upper portion of the upper stand 123 and a wing driving motor 131 for rotating the rotary wing 140 is installed in the motor housing 130. The rotary shaft 131a of the wing drive motor 131 is protruded in front of the motor housing 130 and the rotary blade 140 is coupled to the rotary shaft 131a to be rotationally driven.

The rear bracket 133 is coupled to the front side of the blade driving motor 131 and the rear safety net 153, the catching member 140 and the rotary blade fixing cap 145 are fixed to the front side of the fixing bracket 133, (131a). The rear safety net 153 is assembled to the front safety net 151 by the safety net coupling unit 160 in a detachable manner.

That is, the rotary blades 140 are surrounded and protected by the front and rear safety nets 151 and 153, and the front safety net 151 must be separated from the rear safety net 153 in order to clean or separate the rotary blades 140.

The safety net coupling unit 160 is for coupling and detachably connecting the front and rear safety nets 151 and 153 with each other. This safety net coupling unit 160 has a ring frame 170 and an arc frame 180 which is coupled with the ring frame 170 in a sliding manner.

The ring frame 170 is assembled to the arc frame 180 in a state of being coupled to the front safety net 151 by sliding up and down. At this time, the arc-shaped frame 180 is held in the state of being coupled to the rear safety net 153 first. That is, in a state in which the arc-shaped frame 180 is engaged with the rear-side coupling ring 153a of the rear safety net 153, the ring-shaped frame 170 to which the front coupling ring 151a of the front safety net 151 is coupled, The rest of the rear engagement ring 153a of the rear safety net 153 is engaged with the ring frame 170 when it is approached to be assembled with the frame 180. [ In addition, the remaining portions that are not engaged with the ring frame 170 are assembled by being coupled to the arc frame 180.

4 to 7, the ring frame 170 includes a ring-shaped frame body 171, a first ring engaging portion 173 extending in a predetermined width in the frame body 171 and formed in a part of a circumferential direction, A plurality of second ring engaging portions 175 extending in a predetermined width from the frame body 171 so as to be spaced apart from the first ring engaging portion 173 in the circumferential direction, And the first fastening portion 177 is formed.

The frame body 171 is formed in a ring shape, and each of the first and second ring coupling portions 171 and 173 is extended and formed to have a different width.

The first ring coupling portion 173 is extended to the outer side of the frame body 171 and is formed to have a length of about 50 ± 10% of the frame body 171 in the circumferential direction. The first ring engaging portion 173 has a first ring engaging groove 173a and a second ring engaging groove 173b which are engaged with the rear engaging ring 153a. Are continuously formed to be adjacent to each other along the circumferential direction.

A third ring coupling groove 175a is formed in the inner circumference of the second ring coupling portion 175 to receive and engage the front coupling ring 151a. The first and third ring coupling grooves 173a and 175a are arranged on the same imaginary circular arc, and have a structure in which they are short-circuited. A plurality of second ring engaging portions 175 are arranged at predetermined intervals and are formed to have a smaller width than the first ring engaging portions 173. [

In order to prevent the front coupling ring 151a engaged with the first and third ring defect grooves 173a and 175a from being separated from each other, the first and third ring defect grooves 173a and 175a, A plurality of elastic hooks 176 are provided.

 The first fastening portion 177 is provided on the opposite side facing the first ring engaging portion 173 and includes threaded screw holes. The first fastening portions 177 are configured to be firmly coupled to each other by a coupling screw in a state in which the first fastening portions 177 are positioned so as to be in contact with the second fastening portions 187 of the circular frame 180.

That is, both the front coupling ring 151a and the rear coupling ring 153 can be coupled to the first ring coupling portion 173, and only the front coupling ring 151a can be coupled to the first ring coupling portion 173 so as not to separate from each other.

The arc-shaped frame 180 has a shape complementary to the shorted portion of the ring 170 on the basis of the circumferential direction of the ring 170, and more specifically, it is formed in a substantially semicircular shape. The arc frame 180 includes a fourth ring engagement groove 181, a fifth ring engagement groove 183, an elastic hook 185, a second engagement portion 187, a second ring engagement portion 175 ) Are complementarily coupled to each other.

The fourth ring coupling groove 181 is formed on the same circle as the first and third ring coupling grooves 173a and 175a when the ring frame 170 and the arc frame 180 are engaged with each other, Respectively. Therefore, the front coupling ring 151a of the front safety net 153 is inserted and engaged with the fourth ring coupling groove 181. Since the elastic coupling hooks are not formed in the fourth ring coupling groove 181 and the front coupling ring 151a is simply fitted and supported, a large force is applied to the front coupling ring 151a in the fourth ring coupling groove 181 It can be easily combined and separated without applying. Further, the fourth ring engagement groove 181 is discontinuously formed as a short-circuited structure in the circumferential direction, that is, in the ring groove mounting groove portion 189.

The fifth ring coupling groove 183 is continuously formed on the inner periphery of the arc frame 180 and the rear coupling ring 153a of the rear safety net 153 is inserted and engaged. A plurality of hook members 185 are provided so as to be spaced along the fifth ring engagement groove 183 to prevent the rear engagement ring 153a inserted in the fifth ring engagement groove 183 from being separated.

The front safety net 151 that is fixedly coupled to the ring frame 170 in advance when the arcuate frame 180 and the ring frame 170 are assembled is not provided with the hook member in the fourth ring engagement groove 181. [ The engagement ring 151a is easily inserted into the fourth ring engagement groove 181 and supported. The coupling ring 153a of the rear safety net 153 is inserted into the fifth ring coupling groove 183 of the arc frame 180 and fixed to the second ring coupling groove 173b of the ring frame 170, So that it can be inserted and supported.

The second fastening portion 187 is formed at a position corresponding to the first fastening portion 177 of the ring frame 170 and is formed in a plate structure to be in contact with the outside of the first fastening portion 177, And has a fastening hole 187a corresponding to a screw hole of the first fastening portion 177. [

Referring to FIG. 9, the ring groove mounting groove 189 may be formed to have a predetermined distance from the shorted portion without being formed continuously in the circular arc direction, and a plurality of the ring groove mounting groove 189 may be spaced apart. The end faces 189a and 189b corresponding to the arcuate direction of the ring groove mounting groove portion 189 are formed to be parallel to each other and are disposed on both side faces of the second ring engaging portion 175 that is coupled to the ring groove cooking groove 189 175b, and 175c are also formed in parallel with each other. Therefore, when the ring frame 170 is assembled with the arc frame 180 in a sliding manner, the second ring coupling portion 175 can be assembled to the ring frame mounting groove portion 189 in a sliding manner.

9 and 11, in a state where the arc-shaped frame 180 is coupled to the rear safety net 153 so that the second fastening portion 187 is positioned at the lower side, The ring frame 170 is lowered from the upper part of the arc frame 180 to the lower part, and the ring frame 170 is slidably assembled to the arc frame 180 as shown in FIG. 2 and FIG. The lower part of the front coupling ring 151a coupled to the ring frame 170 is inserted into the fourth ring coupling groove 181 of the arc frame 180 and is coupled to the rear safety net 153 are inserted and joined to the second ring engagement groove 173b of the ring frame 170 so that the rear safety net 153 and the front safety net 151 can be assembled and coupled . After the assembly, the first and second fastening portions 177 and 187 are screwed together so that the front and rear safety nets 151 and 153 can be unbonded.

When the front safety net 151 and the rear safety net 153 are to be separated from each other, after the screws connecting the first and second fastening portions 177 and 187 are separated, The ring frame 170 is smoothly separated from the arc frame 180 by a sliding manner so that it can be easily separated by a small force unlike the conventional art.

In the above description, the ring frame 170 is fixedly coupled to the front safety net 151 and the arc frame 180 is fixedly coupled to the rear safety net 153. However, Do. That is, it is a matter of course that the arc frame 180 is fixedly coupled to the front safety net 151 and the ring frame 170 is fixedly coupled to the rear safety net 153.

According to the safety net coupling unit and the electric fan including the safety net coupling unit according to the embodiment of the present invention described above, the front and rear safety nets 151 and 153 surrounding the rotary vane 140 can be easily assembled and removed in a sliding manner up and down, And it is advantageous in that it can be easily assembled and separated without requiring a large force to separate it.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. Those skilled in the art will readily appreciate that many modifications and variations of the present invention are possible without departing from the spirit and scope of the appended claims.

100 .. Fan 110 .. Base portion
120 .. stand part 130 .. motor housing
140 .. Rotating blades 151 .. Front safety net
153 .. rear safety net 160 .. safety net coupling unit
170 .. ringtone 189 .. arc frame

Claims (7)

A ring-shaped ring frame coupled to one of the front safety net and the rear safety net, which surrounds and protects the rotary blades of the fan, with a greater coupling force;
And an arcuate frame having an arc shape and coupled to the other of the front safety net and the rear safety net with a larger coupling force,
Wherein the ring frame and the arcuate frame are relatively close to each other in a direction crossing the rotation axis of the rotary blades. The apparatus according to claim 1,
A ring-shaped frame body;
A first ring coupling portion extending in the width direction in the frame body and formed in a part of the circumferential direction in a part of the circumferential direction, wherein both the front and rear safety chambers are coupled;
A first ring engagement portion extending in the width direction of the frame body so as to be spaced apart from the first ring engagement portion in a circumferential direction and having a width smaller than that of the first ring engagement portion, A second ring-shaped portion of the second ring-shaped portion;
And a first fastening part installed on the frame body and fastened to the arc fastening frame. 3. The method of claim 2,
A first ring engagement groove in which the engagement ring of any one of the front and rear safety nets is fitted and coupled to the inner circumference of the first ring engagement portion and a second ring engagement groove in which the other engagement ring is fitted, Wherein the first and second shields are continuously formed so as to be adjacent to each other. The method of claim 3,
And a third ring coupling groove is formed in the inner periphery of the second ring coupling portion, wherein a coupling ring of a safety net coupled to the first ring coupling groove is inserted and coupled,
And a first elastic hook for preventing separation of a coupling ring inserted into the first ring coupling groove and the third ring coupling groove is provided so as to protrude toward the first ring coupling groove and the third ring coupling groove. Safety net coupling unit. [5] The apparatus of claim 3,
A fourth ring coupling groove to which a coupling ring coupled to the first and third ring coupling grooves is engaged when the ring frame is engaged with the ring frame;
A fifth ring coupling groove to which a coupling ring coupled to the second ring coupling groove is coupled; And
And a second resilient hook protruding from the fifth ring engagement ring side to suppress separation of the engagement ring coupled to the fifth ring engagement groove. 6. The apparatus according to claim 5,
A ring-shaped mounting groove portion formed by short-circuiting the fourth ring-joined groove in a circumferential direction so that the second ring-coupled portion is complementarily engaged,
Wherein the arc-shaped frame further comprises a second coupling part overlapping with the first coupling part of the ring frame. A stand portion standing upright on the base portion;
A motor housing rotatably mounted on an upper portion of the stand and having a drive motor installed therein;
A rotary blade installed on a rotary shaft of the drive motor; And
A fan according to any one of claims 1 to 6, comprising a safety net coupling unit.
KR1020150046324A 2015-04-01 2015-04-01 A unit for engaging safety-grill and electric fan having the same KR20160118057A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150046324A KR20160118057A (en) 2015-04-01 2015-04-01 A unit for engaging safety-grill and electric fan having the same

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Application Number Priority Date Filing Date Title
KR1020150046324A KR20160118057A (en) 2015-04-01 2015-04-01 A unit for engaging safety-grill and electric fan having the same

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220003245A1 (en) * 2020-07-01 2022-01-06 Hunter Fan Company Mount bracket for fan

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200473769Y1 (en) 2013-03-26 2014-07-31 신일산업 주식회사 Ring for combining safety net of blow fan

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200473769Y1 (en) 2013-03-26 2014-07-31 신일산업 주식회사 Ring for combining safety net of blow fan

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220003245A1 (en) * 2020-07-01 2022-01-06 Hunter Fan Company Mount bracket for fan
US11719259B2 (en) * 2020-07-01 2023-08-08 Hunter Fan Company Mount bracket for fan

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