CN202887899U

CN202887899U - Magnetic force rotation connecting structure and lamp adopting structure

Info

Publication number: CN202887899U
Application number: CN 201220608940
Authority: CN
Inventors: 吴育林
Original assignee: Triumphant West Europe Foshan City Lighting Co Ltd
Current assignee: Triumphant West Europe Foshan City Lighting Co Ltd
Priority date: 2012-11-15
Filing date: 2012-11-15
Publication date: 2013-04-17
Anticipated expiration: 2022-11-15

Abstract

The utility model discloses a magnetic force rotation connecting structure which comprises two construction elements in rotation connection; the two construction elements are in rotation connection in a mode that conical shafts are inserted into conical holes; the conical holes and the conical shafts are coaxial and have the same conical angle; each of the two construction elements is respectively provided with an annular magnet; the annular surface of the annular magnet is a magnetic pole; the annular magnets on the two construction elements are close to each other and different poles are opposite; and under the magnetic force effect of the two annular magnets, conical surfaces of the conical shafts and conical surfaces of the conical holes form frictional match with certain contact pressure. The utility model also provides a lamp adopting the magnetic force rotation connecting structure. The magnetic force rotation connecting structure and the lamp adopting the magnetic force rotation connecting structure provided by the utility model have the advantages that the following requirements can be met at the same time: the two construction elements can be screwed without hands, can relatively rotate to any angle, and can be convenient to separate and combine; and the construction elements screwed without hands can bear great torque load.

Description

A kind of magnetic rotation syndeton and adopt the light fixture of this structure

Technical field

The utility model relates to two rotation connection structures between the member, particularly can free-handly turn one of them member, and this member can bear certain torsion load, also easy-to-mount rotation connection structure.The utility model also relates to the light fixture that adopts this rotation connection structure.

Background technology

In many products, often two members need to be rotatably connected, and require this being rotationally connected to satisfy following the requirement: 1, free-hand one of them member that turns of energy; 2, can be done 360 degree rotations by the free-hand member that turns; 3, after letting go, can be born certain torsion load by the free-hand member that turns; 4, can separate easily and combination between two members, be convenient to dismounting.In the prior art, still there is not to satisfy simultaneously the rotation connection structure of above-mentioned some requirement.

The utility model content

The purpose of this utility model provides a kind of magnetic rotation syndeton, and this magnetic rotation syndeton can satisfy above-mentioned 4 requirements simultaneously.The utility model also provides a kind of light fixture that adopts this magnetic rotation syndeton.

For achieving the above object, magnetic rotation syndeton described in the utility model, comprise two members that are rotationally connected, described two members are rotationally connected in the mode that diminished shaft inserts bellmouth, bellmouth and diminished shaft are separately positioned on described two members, bellmouth is coaxial with diminished shaft and have an identical cone angle, on described two members, respectively be provided with annular magnet, the axis of annular magnet is coaxial with bellmouth and diminished shaft, the ring surface of annular magnet is magnetic pole, annular magnet on two members is close to each other and heteropole is relative, under the magneticaction of this two annular magnet, the taper seat close contact of the taper seat of diminished shaft and bellmouth, formation has the frictional fit of certain contact.

As preferred plan or further improvement, the utility model also can be taked following attached structure.

The angle of taper of described bellmouth and diminished shaft is 5～30 degree.

Described two annular magnets are separately fixed in the diminished shaft and the bottom of bellmouth.

In described bellmouth, be provided with the first electrode pair fitting, in described diminished shaft, be provided with the second electrode pair fitting, insert at described diminished shaft under the state of described bellmouth, the first electrode pair fitting docks in the mode that the hole axle cooperates with the second electrode pair fitting, and the central shaft that this hole axle cooperates is coaxial with described bellmouth and diminished shaft.

On the other hand, the utility model also provides a kind of light fixture, this light fixture comprises two members that are rotationally connected, and adopts the magnetic rotation syndeton between this two member, and described magnetic rotation syndeton is the described magnetic rotation syndeton of above-mentioned any one technical scheme.

The utility model has the advantages that: 1, owing to two members are rotationally connected in the mode that diminished shaft inserts bellmouth, and diminished shaft relies on magnetic force to insert in the bellmouth, therefore only need hand operation that two members are relatively rotated, and can also separate easily and combination between two members; 2, owing to the described design feature of preceding paragraph, magnet is annular magnet in addition, and therefore two members can relatively rotate to unspecified angle; 3, because forming, the taper seat of diminished shaft and bellmouth has the frictional fit of certain contact under magneticaction, therefore formed a kind of wedging power, make bellmouth produce certain radially grip force to diminished shaft, thus so that can be born larger torsion load by the free-hand member that turns.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment;

Fig. 2 is the schematic diagram after two members shown in Figure 1 separate;

Fig. 3 is that the utility model is applied in the embodiment on the light fixture.

Embodiment

Referring to Fig. 1 and Fig. 2, the magnetic rotation syndeton comprises two members 1,2 that are rotationally connected, and member 1 is fixed with diminished shaft 3, and member 2 offers bellmouth 4, and member 1 and member 2 are rotationally connected in the mode that diminished shaft 3 inserts bellmouth 4.The concrete shape of member 1 and member 2 is decided according to the concrete application of rotation connection structure, is not subjected to the diagram restriction.

Bellmouth 4 and diminished shaft 3 are coaxial and have an identical cone angle.Cone angle described in the utility model refers to the angle between two buses on the shaft section (through the cross section of the axle of circular cone) of taper seat.In the diminished shaft 3 of member 1, be fixed with annular magnet 5.Bottom at the bellmouth 4 of member 2 is fixed with annular magnet 6.The axis of annular magnet 5 and annular magnet 6 is coaxial with bellmouth 4 and diminished shaft 3.Two annular magnets 5,6 ring surface are magnetic poles, and heteropole is relative.Under two annular magnets 5,6 magneticaction, the taper seat close contact of the taper seat of diminished shaft 3 and bellmouth 4 forms and has the frictional fit of certain contact.

The angle of taper of bellmouth 4 and diminished shaft 3 is preferably 5～30 degree, like this can be so that 4 pairs of diminished shafts of bellmouth 3 produce the most radially grip force.

In order to make the transmission that can realize the signal of telecommunication or electric power between two members, present embodiment is provided with the first electrode pair fitting 7 in bellmouth 4, in diminished shaft 3, be provided with the second electrode pair fitting 8, insert under the state of bellmouth 4 at diminished shaft 3, the first electrode pair fitting 7 docks in the mode that the hole axle cooperates with the second electrode pair fitting 8, and the central shaft that this hole axle cooperates is coaxial with bellmouth 4 and diminished shaft 3.The concrete structure of the first electrode pair fitting 7 and the second electrode pair fitting 8 is not limited to illustrated embodiment, can decide according to the realization needs.

Fig. 3 shows one rotation connection structure described in the utility model is applied in example on the light fixture.Light fixture shown in Figure 3 is a kind of track lamp, comprises that one can along the support 10 of guide rail 9 slips, be rotatably connected to luminous plaque 11 at support 10.Luminous plaque 11 and support 10 are exactly two members in the magnetic rotation syndeton described in the utility model, namely corresponding to the member 1 among Fig. 1 and Fig. 2 and member 2.This light fixture requires luminous plaque 11 to be turned by free-hand, can rotate to unspecified angle around axis AB, and after letting go, luminous plaque 11 can remain on the angle after the rotation reliably, can not rotate voluntarily easily because of the deviation of gravity center axis AB of luminous plaque 11, that is to say that luminous plaque 11 can bear certain torsion load, moreover, also require luminous plaque 11 to separate with support 10 easily and to make up.Luminous plaque 11 adopts magnetic rotation syndeton described in the utility model with being rotationally connected of support 10, can satisfy simultaneously well these requirements.

Claims

1. magnetic rotation syndeton, comprise two members (1 that are rotationally connected, 2), it is characterized in that: described two members (1,2) mode with diminished shaft (3) insertion bellmouth (4) is rotationally connected, bellmouth (4) and diminished shaft (3) are separately positioned on described two members (1,2) on, bellmouth (4) is coaxial with diminished shaft (3) and have an identical cone angle, at described two members (1,2) respectively be provided with annular magnet (5 on, 6), annular magnet (5,6) axis is coaxial with bellmouth (4) and diminished shaft (3), annular magnet (5,6) ring surface is magnetic pole, annular magnet (5 on two members, 6) close to each other and heteropole is relative, at this two annular magnet (5,6) under the magneticaction, the taper seat close contact of the taper seat of diminished shaft (3) and bellmouth (4), formation has the frictional fit of certain contact.

2. magnetic rotation syndeton as claimed in claim 1 is characterized in that: the angle of taper of described bellmouth (4) and diminished shaft (3) is 5～30 degree.

3. magnetic rotation syndeton as claimed in claim 1 is characterized in that: described two annular magnets (5,6) are separately fixed in the diminished shaft (3) and the bottom of bellmouth (4).

4. magnetic rotation syndeton as claimed in claim 1, it is characterized in that: in described bellmouth (4), be provided with the first electrode pair fitting (7), in described diminished shaft (3), be provided with the second electrode pair fitting (8), insert under the state of described bellmouth (4) at described diminished shaft (3), the first electrode pair fitting (7) docks in the mode that the hole axle cooperates with the second electrode pair fitting (8), and the central shaft that this hole axle cooperates is coaxial with described bellmouth (4) and diminished shaft (3).

5. a light fixture comprises two members that are rotationally connected, and adopts the magnetic rotation syndeton between this two member, and it is characterized in that: described magnetic rotation syndeton is the described magnetic rotation syndeton of claim 1 to 4 any one claim.