CN104675756A - Suspension structure and fan with same - Google Patents

Suspension structure and fan with same Download PDF

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Publication number
CN104675756A
CN104675756A CN201310637379.2A CN201310637379A CN104675756A CN 104675756 A CN104675756 A CN 104675756A CN 201310637379 A CN201310637379 A CN 201310637379A CN 104675756 A CN104675756 A CN 104675756A
Authority
CN
China
Prior art keywords
suspension
horizontal part
suspension hook
hole
hanging wheel
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN201310637379.2A
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Chinese (zh)
Inventor
邓其秋
梁耀光
杜文波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Midea Group Co Ltd
GD Midea Environment Appliances Manufacturing Co Ltd
Original Assignee
Midea Group Co Ltd
GD Midea Environment Appliances Manufacturing Co Ltd
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.)
Filing date
Publication date
Application filed by Midea Group Co Ltd, GD Midea Environment Appliances Manufacturing Co Ltd filed Critical Midea Group Co Ltd
Priority to CN201310637379.2A priority Critical patent/CN104675756A/en
Publication of CN104675756A publication Critical patent/CN104675756A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/60Mounting; Assembling; Disassembling
    • F04D29/601Mounting; Assembling; Disassembling specially adapted for elastic fluid pumps

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)

Abstract

The invention discloses a suspension structure and a fan with the same. The suspension structure comprises a suspension disc, a suspension wheel matched on the suspension disc, a suspension hook and a suspension rod. A center shaft hole is formed in the suspension wheel, the upper end of the suspension hook is hung in the center shaft hole, a through hole is formed in the suspension rod, and the lower end of the suspension hook is hung in the through hole. The suspension structure has the advantages of being convenient to assemble and disassemble without a special tool.

Description

Suspension structures and the fan with it
Technical field
The present invention relates to field of household appliances, in particular to a kind of suspension structures and the fan with it.
Background technique
Ceiling fan is arranged on the positions such as ceiling by suspension structures, but existing suspension structures (as shown in Figure 1), installation and removal extremely bother, and need to use special tool.
Summary of the invention
The present invention is intended to solve one of above-mentioned technical problem of the prior art at least to a certain extent.For this reason, one object of the present invention is to propose a kind of suspension structures, and it is convenient and without the need to using the advantages such as special tool that this suspension structures has installation and removal.
Another object of the present invention is to propose a kind of fan with described suspension structures.
For achieving the above object, a first aspect of the present invention proposes a kind of suspension structures, and described suspension structures comprises: hanging scaffold; Hanging wheel, described hanging wheel is engaged on described hanging scaffold, and described hanging wheel is provided with central shaft hole; Suspension hook, the upper end of described suspension hook is hooked in described central shaft hole; Suspension rod, described suspension rod is provided with through hole, and the lower end of described suspension hook is hooked in described through hole.
According to the suspension structures of the embodiment of the present invention, by adopting described suspension hook, and described central shaft hole is set on described hanging wheel, the upper end of described suspension hook can be made to pass through through described central shaft hole to be hooked on described hanging wheel, and described suspension rod is provided with described through hole, the lower end of described suspension hook can by through described through hole to hook described suspension rod, realize the integrated connection of described suspension structures.Compare existing suspension structures, the installation and removal of described suspension structures are convenient, and without the need to using special tool in installation and removal process, both ensure that the reliability of connection, significantly improve again the convenience of installation and removal.Therefore, according to the suspension structures of the embodiment of the present invention, there are installation and removal convenient and without the need to using the advantages such as special tool.
In addition, suspension structures according to the above embodiment of the present invention can also have following additional technical characteristics:
According to one embodiment of present invention, described hanging wheel is provided with the mounting groove be communicated with described central shaft hole, described mounting groove opening up.The installation and removal of described suspension hook and described hanging wheel can be convenient to thus further.
According to one embodiment of present invention, described suspension structures also comprises: the first sheath, and described first sheath to be set on described suspension hook and between described suspension hook and the wall of described central shaft hole; And/or second sheath, described second sheath to be set on described suspension hook and between described suspension hook and the wall of described through hole.Not only can prevent described hanging wheel and described suspension hook from rubbing for a long time thus and described suspension hook and described suspension rod rub for a long time and damage, and described suspension hook can be reduced to the active force of described hanging wheel and described suspension rod to the active force of described suspension hook.
According to one embodiment of present invention, described first sheath and/or described second sheath and described hanging wheel are rubber parts.Not only can improve the damping effect of described suspension structures thus, and can noise be reduced.
According to one embodiment of present invention, described through hole is that varus is lateral opening.Described suspension hook can be made like this to be connected more stable with described suspension rod.
According to one embodiment of present invention, the lower end of described suspension hook is provided with spacing hole, is combined with the stop screw for suspension rod described in backstop in described spacing hole.The reliability of described suspension structures can be improved thus.
According to one embodiment of present invention, described suspension hook comprises: vertically joint; Horizontal part on first, on described first, the first end of horizontal part is connected with the upper end of described vertical joint, and on described first, horizontal part is through described central shaft hole; Lower horizontal part, the first end of described lower horizontal part is connected with the lower end of described vertical joint, and described lower horizontal part is through described through hole.Can realize the connection function of described suspension hook to described hanging wheel and described suspension rod thus, and structure is simple, installation and removal are convenient.
According to one embodiment of present invention, described suspension hook also comprises: upper vertical portion, and the upper end of described upper vertical portion is connected with the second end of horizontal part on described first, and described upper vertical portion and described vertical joint lay respectively at the both sides of described hanging wheel; Horizontal part on second, on described second, one end of horizontal part is connected with the lower end of described upper vertical portion and is positioned at below described hanging wheel.The stability that described suspension hook is connected with described hanging wheel can be improved thus, and do not affect the convenience that described suspension hook and described hanging wheel mount and dismount.
According to one embodiment of present invention, described suspension hook also comprises the portion of having a down dip, described in the portion that has a down dip be connected with the second end of described lower horizontal part and be inclined upwardly and extend, described in have a down dip portion and described vertical joint lay respectively at the both sides of described suspension rod.The stability that described suspension hook is connected with described suspension rod can be improved like this, and do not affect the convenience of described suspension hook and described hanger erection and dismounting.
A second aspect of the present invention proposes a kind of fan, and described fan comprises: suspension structures, and described suspension structures is suspension structures described according to a first aspect of the invention; Fuselage, described fuselage is connected with described suspension rod.
According to the fan of the embodiment of the present invention, by utilizing suspension structures described according to a first aspect of the invention, there is assembling and the advantage such as easy to maintenance.
Accompanying drawing explanation
Fig. 1 is the explosive view of existing suspension structures.
Fig. 2 is the structural representation of the suspension structures according to the embodiment of the present invention.
Fig. 3 is the sectional view of the suspension structures according to the embodiment of the present invention.
Fig. 4 is the enlarged view in B region in Fig. 3.
Fig. 5-Fig. 9 is the assembling schematic diagram of the suspension structures according to the embodiment of the present invention.
Reference character: suspension structures 10, hanging scaffold 100, hanging wheel 200, central shaft hole 210, mounting groove 220, suspension hook 300, vertical joint 310, horizontal part 320 on first, the first end 321 of horizontal part 320 on first, second end 322 of horizontal part 320 on first, lower horizontal part 330, the first end 331 of lower horizontal part 330, second end 332 of lower horizontal part 330, upper vertical portion 340, horizontal part 350 on second, have a down dip portion 360, spacing hole 361, suspension rod 400, through hole 410, first sheath 500, second sheath 600, stop screw 700.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
Below with reference to Fig. 2-Fig. 9, the suspension structures 10 according to inventive embodiments in this year is described.As shown in Fig. 2-Fig. 9, comprise hanging scaffold 100, hanging wheel 200, suspension hook 300 and suspension rod 400 according to the suspension structures 10 of the embodiment of the present invention.
Hanging wheel 200 is engaged on hanging scaffold 100, and hanging wheel 200 is provided with central shaft hole 210.The upper end of suspension hook 300 is hooked in central shaft hole 210.Suspension rod 400 is provided with through hole 410, and the lower end of suspension hook 300 is hooked in through hole 410.
The installation process of the suspension structures 10 according to the embodiment of the present invention is described below.As shown in Fig. 5-Fig. 9, by the upper end centering axis hole 210 of suspension hook 300, to make the upper end of suspension hook 300 through central shaft hole 210, complete suspension hook 300 and the assembling of hanging wheel 200, the suspension hook 300 assembled and hanging wheel 200 are passed hanging scaffold 100 and hanging wheel 200 is engaged on hanging scaffold 100.By the lower end of suspension hook 300 through the through hole 410 on suspension rod 400, be hooked on suspension hook 300 to make suspension rod 400.The unloading process of suspension structures 10 is the inverse process of installation process, only need be reversed by above-mentioned steps, repeat no more here.
According to the suspension structures 10 of the embodiment of the present invention, by adopting suspension hook 300, and central shaft hole 210 is set on hanging wheel 200, the upper end of suspension hook 300 can be made to pass through through central shaft hole 210 to be hooked on hanging wheel 200, and suspension rod 400 is provided with through hole 410, the lower end of suspension hook 300 can by through through hole 410 to hook suspension rod 400, realize the integrated connection of suspension structures 10.Compare existing suspension structures, the installation and removal of suspension structures 10 are convenient, and without the need to using special tool in installation and removal process, both ensure that the reliability of connection, significantly improve again the convenience of installation and removal.Therefore, according to the suspension structures 10 of the embodiment of the present invention, there are installation and removal convenient and without the need to using the advantages such as special tool.
Further, as shown in Fig. 2, Fig. 3 and Fig. 6-Fig. 9, hanging wheel 200 can be provided with further the mounting groove 220 be communicated with central shaft hole 210, the opening of mounting groove 220 can upward (above-below direction is as shown in the arrow A in Fig. 2-Fig. 9).Alternatively, central shaft hole 210 can be positioned at the central axis of hanging wheel 200, central shaft hole 210 and mounting groove 220 can all along hanging wheel 200 the through hanging wheel 200 of thickness direction and be interconnected.Wherein, mounting groove 220 opening up refer to the opening of mounting groove 220 towards directly over or oblique upper, the opening being preferably mounting groove 220 towards directly over.The installation and removal of suspension hook 300 and hanging wheel 200 can be convenient to thus further.Specifically, in installation process, hanging wheel 200 can be rotated and aim at suspension hook 300 to make mounting groove 220, suspension hook 300 is slipped in central shaft hole 210 by mounting groove 220, rotate hanging wheel 200 to make the opening up of mounting groove 220, complete the assembling of suspension hook 300 and hanging wheel 200.Fig. 2-Fig. 9 shows the suspension structures 10 according to the present invention's specific embodiment.As shown in Fig. 2-Fig. 9, suspension hook 300 can comprise horizontal part 320 and lower horizontal part 330 on vertical joint 310, first.On first, the first end 321 of horizontal part 320 can be connected with the upper end of vertical joint 310, and on first, horizontal part 320 can pass central shaft hole 210.The first end 331 of lower horizontal part 330 can be connected with the lower end of vertical joint 310, and lower horizontal part 330 can pass through hole 410.When mounting and dismounting, only horizontal part on first 320 need be slipped into or skid off central shaft hole 210 by mounting groove 220, and lower horizontal part 330 is penetrated or extract through hole 410.Can realize the connection function of suspension hook 300 pairs of hanging wheels 200 and suspension rod 400 thus, and structure is simple, installation and removal are convenient.
As shown in Fig. 2-Fig. 9, in order to improve the stability that suspension hook 300 is connected with hanging wheel 200, suspension hook 300 can also comprise horizontal part 350 on vertical portion 340 and second.The upper end of upper vertical portion 340 can be connected with the second end 322 of horizontal part on first 320, and upper vertical portion 340 and vertical joint 310 can lay respectively at the both sides of hanging wheel 200.On second, one end of horizontal part 350 can be connected with the lower end of upper vertical portion 340, and on second, horizontal part 350 can be positioned at below hanging wheel 200.Like this can by hanging wheel 200 backstop between vertical joint 310 and upper vertical portion 340, thus can prevent horizontal part 320 on first from deviating from central shaft hole 210, to prevent suspension hook 300 from departing from hanging wheel 200, and do not affect the convenience that suspension hook 300 mounts and dismounts with hanging wheel 200.
Further, suspension hook 300 can also comprise the portion of having a down dip 360, the portion 360 that has a down dip can be connected with the second end 332 of lower horizontal part 330, and the portion 360 that has a down dip can be inclined upwardly extension from the second end 332 of lower horizontal part 330, have a down dip portion 360 and vertical joint 310 can lay respectively at the both sides of suspension rod 400.The portion of having a down dip 360 backstop suspension rod 400 can be utilized like this, through hole 410 is deviate to prevent lower horizontal part 330, and then can prevent suspension hook 300 from departing from suspension rod 400, improve the stability that suspension hook 300 is connected with suspension rod 400, and do not affect the convenience that suspension hook 300 mounts and dismounts with suspension rod 400.
Wherein, on vertical joint 310, first, on horizontal part 320, lower horizontal part 330, upper vertical portion 340, second, horizontal part 350 and the portion 360 that has a down dip can be integrally formed.The intensity of suspension hook 300 can be ensured thus, and the production technology of suspension hook 300 can be simplified.
Fig. 5-Fig. 8 shows the suspension structures 10 according to the present invention's concrete example.As shown in Figure 5-Figure 8, suspension structures 10 can also comprise the first sheath 500, first sheath 500 can be set in suspension hook 300 first on horizontal part 320, and the first sheath 500 can on first horizontal part 320 and central shaft hole 210 wall between.Suspension hook 300 can be avoided so directly to contact with hanging wheel 200, not only can prevent hanging wheel 200 and suspension hook 300 from rubbing and damaging for a long time, and the active force of suspension hook 300 pairs of hanging wheels 200 can be reduced thus.
Accordingly, the lower horizontal part 330 of suspension hook 300 can be arranged with the second sheath 600, second sheath 600 can between lower horizontal part 330 and the wall of through hole 410.Suspension hook 300 can be avoided so directly to contact with suspension rod 400, damage to prevent suspension hook 300 from rubbing for a long time with suspension rod 400, and the active force of suspension rod 400 pairs of suspension hooks 300 can be reduced.
First sheath 500 and the second sheath 600 can be set in respectively on suspension hook 300 before suspension hook 300 and hanging wheel 200 are installed.
Advantageously, the first sheath 500, second sheath 600 and hanging wheel 200 can be rubber parts.Not only can improve the damping effect of suspension structures 10 thus, and can noise be reduced.
Fig. 2-Fig. 9 shows according to one embodiment of the invention suspension structures 10.As shown in Figure 4, through hole 410 can be in-flanges hole.The area of contact of suspension hook 300 and suspension rod 400 can be increased like this, thus suspension hook 300 can be made to be connected more stable with suspension rod 400.
Advantageously, as shown in Fig. 2, Fig. 3 and Fig. 5-Fig. 9, the portion that has a down dip 360 of suspension hook 300 can be provided with spacing hole 361, the stop screw 700 for backstop suspension rod 400 in spacing hole 361, can be combined with.Stop screw 700 backstop suspension rod 400 can be utilized like this, to prevent suspension rod 400 from departing from suspension hook 300 further, thus the reliability of suspension structures 10 can be improved.
Fan according to the embodiment of the present invention is described below, and described fan comprises suspension structures and fuselage (not shown).
Described suspension structures is suspension structures 10 according to the above embodiment of the present invention.Described fuselage is connected with suspension rod 400.
According to the fan of the embodiment of the present invention, by utilizing suspension structures 10 according to the above embodiment of the present invention, there is assembling and the advantage such as easy to maintenance.
According to the fan of the embodiment of the present invention other form and operation be all known for those of ordinary skills, be not described in detail here.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", orientation or the position relationship of the instruction such as " counterclockwise " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristics.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In describing the invention, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score can comprise the first and second features and directly contact, also can comprise the first and second features and not be directly contact but by the other characterisation contact between them.And, fisrt feature second feature " on ", " top " and " above " comprise fisrt feature directly over second feature and oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " comprise fisrt feature immediately below second feature and tiltedly below, or only represent that fisrt feature level height is less than second feature.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.In addition, the different embodiment described in this specification or example can carry out engaging and combining by those skilled in the art.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.

Claims (10)

1. a suspension structures, is characterized in that, comprising:
Hanging scaffold;
Hanging wheel, described hanging wheel is engaged on described hanging scaffold, and described hanging wheel is provided with central shaft hole;
Suspension hook, the upper end of described suspension hook is hooked in described central shaft hole;
Suspension rod, described suspension rod is provided with through hole, and the lower end of described suspension hook is hooked in described through hole.
2. suspension structures according to claim 1, is characterized in that, described hanging wheel is provided with the mounting groove be communicated with described central shaft hole, described mounting groove opening up.
3. suspension structures according to claim 1, is characterized in that, also comprises:
First sheath, described first sheath to be set on described suspension hook and between described suspension hook and the wall of described central shaft hole; And/or
Second sheath, described second sheath to be set on described suspension hook and between described suspension hook and the wall of described through hole.
4. suspension structures according to claim 3, is characterized in that, described first sheath and/or described second sheath and described hanging wheel are rubber parts.
5. suspension structures according to claim 1, is characterized in that, described through hole is that varus is lateral opening.
6. suspension structures according to claim 1, is characterized in that, the lower end of described suspension hook is provided with spacing hole, is combined with the stop screw for suspension rod described in backstop in described spacing hole.
7. the suspension structures according to any one of claim 1 to 7, is characterized in that, described suspension hook comprises:
Vertical joint;
Horizontal part on first, on described first, the first end of horizontal part is connected with the upper end of described vertical joint, and on described first, horizontal part is through described central shaft hole;
Lower horizontal part, the first end of described lower horizontal part is connected with the lower end of described vertical joint, and described lower horizontal part is through described through hole.
8. suspension structures according to claim 7, is characterized in that, described suspension hook also comprises:
Upper vertical portion, the upper end of described upper vertical portion is connected with the second end of horizontal part on described first, and described upper vertical portion and described vertical joint lay respectively at the both sides of described hanging wheel;
Horizontal part on second, on described second, one end of horizontal part is connected with the lower end of described upper vertical portion and is positioned at below described hanging wheel.
9. suspension structures according to claim 7, it is characterized in that, described suspension hook also comprises the portion of having a down dip, described in the portion that has a down dip be connected with the second end of described lower horizontal part and be inclined upwardly and extend, described in have a down dip portion and described vertical joint lay respectively at the both sides of described suspension rod.
10. a fan, is characterized in that, comprising:
Suspension structures, described suspension structures is the suspension structures according to any one of claim 1-9;
Fuselage, described fuselage is connected with described suspension rod.
CN201310637379.2A 2013-12-02 2013-12-02 Suspension structure and fan with same Pending CN104675756A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310637379.2A CN104675756A (en) 2013-12-02 2013-12-02 Suspension structure and fan with same

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Application Number Priority Date Filing Date Title
CN201310637379.2A CN104675756A (en) 2013-12-02 2013-12-02 Suspension structure and fan with same

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CN104675756A true CN104675756A (en) 2015-06-03

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111547248A (en) * 2019-11-29 2020-08-18 中国商用飞机有限责任公司 Connecting device and passenger service unit with same

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN87211826U (en) * 1987-08-08 1988-05-25 南京电扇厂 Folding mobile-frame used for miny pendent fan
CN87211890U (en) * 1987-08-12 1988-07-06 南京电扇厂 Console model ceiling fan holder with continuous power supply
JPH01142296A (en) * 1987-11-27 1989-06-05 Matsushita Seiko Co Ltd Suspending device for ceiling fan
CN2256483Y (en) * 1995-04-21 1997-06-18 广东美的集团股份有限公司 Fastening ring for fan net cover
GB2382561A (en) * 2001-10-10 2003-06-04 John Frederick Cowler Submersible pump grab
CN102730107A (en) * 2011-03-31 2012-10-17 张晶 Wheel fixing sleeve and bicycle suspension device using the same
CN203614446U (en) * 2013-12-02 2014-05-28 广东美的环境电器制造有限公司 Suspension structure and fan with suspension structure

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN87211826U (en) * 1987-08-08 1988-05-25 南京电扇厂 Folding mobile-frame used for miny pendent fan
CN87211890U (en) * 1987-08-12 1988-07-06 南京电扇厂 Console model ceiling fan holder with continuous power supply
JPH01142296A (en) * 1987-11-27 1989-06-05 Matsushita Seiko Co Ltd Suspending device for ceiling fan
CN2256483Y (en) * 1995-04-21 1997-06-18 广东美的集团股份有限公司 Fastening ring for fan net cover
GB2382561A (en) * 2001-10-10 2003-06-04 John Frederick Cowler Submersible pump grab
CN102730107A (en) * 2011-03-31 2012-10-17 张晶 Wheel fixing sleeve and bicycle suspension device using the same
CN203614446U (en) * 2013-12-02 2014-05-28 广东美的环境电器制造有限公司 Suspension structure and fan with suspension structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111547248A (en) * 2019-11-29 2020-08-18 中国商用飞机有限责任公司 Connecting device and passenger service unit with same

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