CN218062791U

CN218062791U - Fan blade safety structure and fan

Info

Publication number: CN218062791U
Application number: CN202222414701.2U
Authority: CN
Inventors: 谢隆发; 梁锦安; 陈安国; 廖陆华; 陈耀辉
Original assignee: Jiangmen City Xinhui District Asia Enlightening Electromechanics Co ltd Factory
Current assignee: Jiangmen City Xinhui District Asia Enlightening Electromechanics Co ltd Factory
Priority date: 2022-09-13
Filing date: 2022-09-13
Publication date: 2022-12-16
Anticipated expiration: 2032-09-13

Abstract

The utility model relates to a flabellum safety structure and fan. Wherein flabellum safety structure includes: a fastener; a connecting member; the clamping position is arranged at the first leaf end; the boss, the boss is located and is extended at first lobe portion and along the length direction of first lobe portion, wherein, the boss is keeping away from the tip of first lobe end with fastener fixed connection, the one end of connecting piece with the fastener is connected and the other end of connecting piece with the screens joint. Wherein flabellum fan includes: a head assembly; a plurality of fan blades connected to the head assembly; the fan blade safety structure is provided. The utility model discloses not only make flabellum self firmer, can still keep being connected with aircraft nose subassembly the part of splitting through the connecting piece under its cracked condition, avoid the part of splitting to fall in order to threaten the safety constitution of people or thing.

Description

Fan blade safety structure and fan

Technical Field

The utility model relates to a flabellum safety structure and fan.

Background

The fan belongs to the electrical apparatus of wide popularization type, especially ceiling fan, because the flabellum is big and long has better fan ability. The conventional ceiling fan is formed by combining a rotating machine head and fan blades, and most of the fan blades are made of metal. In recent years, due to process upgrading and cost control, the manufacturing materials of a plurality of fan blades are changed from metal to plastic, so that the ceiling fan is lighter and more convenient to install. However, as the fan blades are made of plastic, the fan blades are easy to deform under the action of wind force and break, and when the fan blades are not exposed to the environment, the fan blades break, so that potential threats are formed to the environment and the safety of people.

SUMMERY OF THE UTILITY MODEL

The utility model provides a flabellum safety structure and fan aims at solving one of the technical problem that exists among the prior art at least.

The technical scheme of the utility model an aspect relates to an install in flabellum safety structure of flabellum, the flabellum has first leaf portion and second leaf portion, first leaf portion has first tip, the outer width of second leaf portion is greater than the outer width of first leaf portion. The fan blade safety structure includes: a fastener; a connecting member; the clamping position is arranged at the first blade end; the boss, the boss is located and is extended at first lobe and along the length direction of first lobe, wherein, the boss is keeping away from the tip of first lobe end with fastener fixed connection, the one end of connecting piece with the fastener is connected and the other end of connecting piece with the screens joint.

Further, the boss includes: a flat upper surface; the wire grooves are recessed from the upper surface, arranged along the length direction of the boss and linearly communicated with the clamping positions and the end parts, far away from the first blade ends, of the boss; and the threaded part is arranged at the end part of the boss far away from the first blade end and is used for fixing and connecting the fastener.

Further, the connector includes: a rope portion; a sleeve part arranged at one end of the rope part, wherein the sleeve part is connected with the fastening piece; and the end post is arranged at the other end of the rope part, and the diameter of the end post is greater than that of the rope part.

Further, the screens include: a planar portion perpendicular to an upper surface of the boss; the end groove is formed in the plane part and can completely accommodate the end column, and the end groove is communicated with the wire groove; the clamping part is arranged at the corner between the end groove and the wire groove.

Further, the first blade portion includes a plurality of mounting holes through the fan blade disposed proximate to the first blade end, and the detent is disposed between two of the mounting holes.

Further, the fan blade safety structure includes: the embedded sheet is arranged inside the first blade part, the material of the embedded sheet is harder than that of the first blade part, and the embedded sheet is provided with a penetrating hole which is coaxial with the mounting hole.

Further, the fan blade safety structure includes: an upper gasket disposed on an upper surface of the first blade portion; the lower gasket is arranged on the lower surface of the first blade part, and the upper gasket and the lower gasket are close to the first blade end and are provided with through holes which are coaxial with the mounting holes.

Further, the first blade part of the fan blade is fixedly connected with a fan blade mounting part of the machine head assembly through bolts, wherein the bolts penetrate through the lower gasket, the first blade part and the upper gasket respectively.

Further, the upper pad and the lower pad are made of a material harder than that of the first blade portion.

The technical scheme of the utility model still relate to a fan, include: a head assembly; a plurality of fan blades connected to the head assembly; the fan blade safety structure is provided.

The beneficial effects of the utility model reside in that: the fan blades are firmer; under the condition that the fan blade is broken, the broken part can still be connected with the machine head assembly through the connecting piece, and the situation that the broken piece falls down to threaten the environment and the safety of people is avoided; the safety factor of the fan is improved.

Drawings

Fig. 1 is a perspective view of a fan blade safety structure and a fan blade according to an embodiment of the present invention.

Fig. 2 is a side view of a fan blade safety structure and a fan blade according to an embodiment of the present invention.

Fig. 3 is a partial top view of a fan blade safety structure and a fan blade according to an embodiment of the present invention.

Fig. 4 isbase:Sub>A partial sectional view taken along section linebase:Sub>A-base:Sub>A of fig. 3.

Fig. 5 is a partially enlarged view of the region B of fig. 4.

Fig. 6 is a perspective view of a connector portion in an embodiment in accordance with the invention.

Fig. 7 is a perspective view of a fan in an embodiment in accordance with the invention.

Fig. 8 is a top view of a fan in an embodiment in accordance with the invention.

Fig. 9 is a partial sectional view taken along section line C-C of fig. 8.

Fig. 10 is a partial cross-sectional perspective view taken along section line C-C of fig. 8.

In the above figures, 100, fan blades; 110. a first leaf portion; 111. a first leaf end; 112. clamping; 1120. a planar portion; 1121. an end slot; 1122. a locking part; 113. mounting holes; 114. a boss; 1141. a wire slot; 1142. a threaded portion; 115. an embedded sheet; 120. a second leaf portion; 200. a fastener; 300. a connecting member; 310. a sleeve portion; 311. a rope portion; 320. an end post; 400. a head assembly; 410. a fan blade mounting member; 500. an upper gasket; 600. and a lower gasket.

Detailed Description

The conception, specific structure and technical effects of the present invention will be described clearly and completely with reference to the accompanying drawings and embodiments, so as to fully understand the objects, aspects and effects of the present invention. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature or indirectly fixed or connected to the other feature. Furthermore, the description of the upper, lower, left, right, top, bottom, etc. used in the present invention is only relative to the mutual positional relationship of the components of the present invention in the drawings.

Furthermore, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any combination of one or more of the associated listed items.

It will be understood that, although the terms first, second, third, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element of the same type from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of the present disclosure.

According to the utility model discloses a flabellum safety structure installs in flabellum 100, and flabellum 100 has first lobe 110 and second lobe 120, and first lobe 110 has first leaf end 111.

Referring to fig. 1-8, in some embodiments, the fan blade safety feature includes a fastener 200, a connector 300, a detent 112, and a boss 114. The detent 112 is disposed at the first blade end 111. The boss 114 is provided at the first blade portion 110 and extends along the length direction of the first blade portion 110, as shown in fig. 3. The end of the boss 114 remote from the first blade end 111 is fixedly connected to the fastener 200, one end of the connector 300 is connected to the fastener 200, and the other end of the connector 300 is engaged with the detent 112.

In these embodiments, since the average width of the first blade portion 110 of the fan blade 100 is smaller than that of the second blade portion 120, the fracture of the fan blade 100 will generally be in the first blade portion 110 under the action of wind, and the boss 114 is provided on the first blade portion 110 to make the fan blade more rigid. The fastener 200 (such as a screw, a rivet, etc.) and the detent 112 fix the connector 300 between the boss 114 and the detent 112, and when the fan blade 100 is broken, the connector 300 can hang the broken part of the fan blade in a half-empty state, so that the fan blade cannot fly out to endanger the safety of the environment and people.

Referring to fig. 1 to 3, a plurality of mounting holes 113 are provided near the first blade end 111 at the first blade portion 110 of the fan blade 100 for fixing the fan blade 100 in the fan. And a part of the detent 112 and the boss 114 is disposed between the two mounting holes 113. Referring to FIG. 3, one of the mounting holes 113 can be located through a centerline of the fan blade 100, and the detent 112 and boss 114 are located a distance h from the centerline. Therefore, the boss 114 does not interfere with the attachment of the fan blade when it functions as a rib of the first blade 110.

Referring to fig. 3 and 4, in some embodiments, a wire groove 1141 and a threaded portion 1142 are provided within the boss 114. The threaded portion 1142 is located within the wire groove 1141 and distal to the first blade end 111. Referring to fig. 5 and 6, the connector 300 includes: a rope portion 311; a sheath portion 310 provided at one end of the string portion 311; and an end post 320 provided at the other end of the string portion 311.

Specifically, the rope portion 311 of the main body of the connector 300 may be a rope-shaped steel cable, which is conveniently buried in the wire slot 1141. The threaded portion 1142 more firmly allows the fastener 200 to fix one end of the connector 300.

The connecting member 300 has a sleeve portion 310 at one end thereof so that the fastening member 200 can be easily inserted through the sleeve portion 310, and a string portion 311 at one end thereof has a loop shape of the sleeve portion, as shown in fig. 6. Fastener 200 acts on sleeve portion 310 and is in a fastening relationship with threaded portion 1142. Thus, fastener 200 is preferably a screw, threaded portion 1142 may be a screw hole or an insert nut, and fastener 200 passes through sleeve portion 310 to form a fastening with threaded portion 1142.

The other end of the connecting member 300 is provided with an end post 320, the size of which matches with a part of the position of the block 112, and the diameter of the end post 320 is larger than that of the rope part 311, so as to be clamped with the block 112.

Referring to fig. 3 to 5, in a further embodiment, the detent 112 includes a planar portion 1120, an end groove 1121, and a detent portion 1122. The plane portion 1120 is perpendicular to the upper surface of the boss 114, so that the string portion 311 of the link 300 forms a right-angle bend at the detent 112. The end slot 1121 is formed on the planar portion 1120 and can completely receive the end post 320, and the end slot 1121 is communicated with the wire slot 1141. The catching portion 1122 is provided at a corner between the end groove 1121 and the wire groove 1141 so that the end post 320 having a diameter larger than that of the rope portion can be caught in the catching portion 1122.

Referring to FIG. 9, in a further embodiment, fan blade 100 is provided with an interior panel 115. Inner insert 115 is located within the interior of blade 100, proximate first blade end 111. Specifically, when the fan blade is formed by injection molding, an inner insert 115 may be added to the inner body of the fan blade to increase the strength of the fan blade.

Referring to fig. 7 to 10, in some embodiments, a fan according to the present invention includes: a head assembly 400; a plurality (e.g., 3) of fan blades 100; and a security structure disposed in each of the leaves. In a further embodiment of the safety structure, an upper spacer 500 is provided on an upper surface of one side of the fan blade 100, and a lower spacer 600 is provided on a lower surface of the other side of the fan blade 100. First blade portion 110 of fan blade 100 is fixedly coupled to fan blade mounting member 410 of nose assembly 400 by bolts that pass through lower spacer 600, first blade portion 110, and upper spacer 500, respectively.

Referring to fig. 9 and 10, the upper spacer 500 and the lower spacer 600 are used to increase the contact area when the fan blade 100 is fixed, thereby reducing the effect of pressure on the fan blade 100 and preventing the fan blade 100 from being damaged as much as possible.

In addition, when the fan blade 100 is fixedly connected to the fan blade mounting member 410 by the bolt, the gasket 500 is mounted, and the rope portion 311 of the connecting member 300 is pressed in the slot 1141 to prevent the loosening, as shown in fig. 10.

The foregoing is merely a preferred embodiment of the present invention, and the present invention is not limited to the above embodiment, as long as the technical effects of the present invention can be achieved by the same means, and any modifications, equivalent replacements, improvements and the like made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure. All belong to the protection scope of the utility model. Various modifications and variations of the technical solution and/or the embodiments thereof are possible within the scope of the invention.

Claims

1. A fan blade safety structure is mounted on a fan blade (100), the fan blade (100) has a first blade part (110) and a second blade part (120), the first blade part (110) has a first blade end (111), the outer width of the second blade part (120) is larger than that of the first blade part (110),

characterized in that, flabellum safety structure includes:

a fastener (200);

a connector (300);

the clamping position (112) is arranged at the first blade end (111);

a boss (114), wherein the boss (114) is arranged on the first blade part (110) and extends along the length direction of the first blade part (110),

the end part of the boss (114) far away from the first blade end (111) is fixedly connected with the fastener (200), one end of the connecting piece (300) is connected with the fastener (200) and the other end of the connecting piece (300) is clamped with the clamping position (112).

2. The fan blade safety structure of claim 1, wherein the boss (114) comprises:

a flat upper surface;

the wire groove (1141) is recessed from the upper surface, the wire groove (1141) is arranged along the length direction of the boss (114), and the wire groove (1141) is linearly communicated with the clamping position (112) and the end part, far away from the first blade end (111), of the boss (114);

a threaded portion (1142), the threaded portion (1142) being disposed at an end of the boss (114) distal from the first lobe end (111) for secure attachment of the fastener (200).

3. Fan blade safety structure according to claim 1 or 2, characterized in that the connector (300) comprises:

a string part (311);

a sleeve portion (310) provided at one end of the rope portion (311), the sleeve portion (310) being connected with the fastener (200);

and the end post (320) is arranged at the other end of the rope part (311), and the diameter of the end post (320) is larger than that of the rope part (311).

4. The fan blade safety structure of claim 3, wherein the detent (112) comprises:

a planar section (1120), the planar section (1120) being perpendicular to an upper surface of the boss (114);

the end groove (1121) is formed in the plane part (1120) and can completely accommodate the end column (320), and the end groove (1121) is communicated with the wire groove (1141);

a clip portion (1122) provided at a corner between the end slot (1121) and the slot (1141).

5. The fan blade safety structure according to claim 1,

the first blade portion (110) comprises a plurality of mounting holes (113) through the fan blade (100) arranged close to the first blade end (111),

the detent (112) is arranged between the two mounting holes (113).

6. The fan blade safety structure of claim 5, wherein the fan blade safety structure comprises:

the embedded piece (115) is arranged inside the first blade part (110), the material of the embedded piece (115) is harder than that of the first blade part (110), and the embedded piece (115) is provided with a through hole which is coaxial with the mounting hole (113).

7. The fan blade safety structure according to claim 1, 5 or 6, wherein the fan blade safety structure comprises:

an upper gasket (500), the upper gasket (500) being disposed on an upper surface of the first blade portion (110);

a lower shim (600), the lower shim (600) being disposed on a lower surface of the first blade part (110),

the upper shim (500) and the lower shim (600) are each adjacent the first blade end (111) and have a through hole that is coaxial with the mounting hole (113).

8. The fan blade safety structure of claim 7,

the first blade part (110) of the fan blade (100) is fixedly connected with a fan blade mounting part (410) of the machine head assembly (400) through bolts, wherein the bolts respectively penetrate through the lower gasket (600), the first blade part (110) and the upper gasket (500).

9. The fan blade safety structure of claim 7,

the upper pad (500) and the lower pad (600) are made of a material harder than the material of the first blade (110).

10. A fan, comprising:

a handpiece assembly (400);

a plurality of fan blades (100) coupled to the head assembly (400);

the fan blade safety structure of any one of claims 1 to 9.