CN102155654B

CN102155654B - Lamp with rotatable lamp cap

Info

Publication number: CN102155654B
Application number: CN 201110052821
Authority: CN
Inventors: 娄小辉; 林万炯
Original assignee: Individual
Current assignee: Ningbo Self Electronics Co Ltd
Priority date: 2011-02-28
Filing date: 2011-02-28
Publication date: 2012-09-12
Anticipated expiration: 2031-02-28
Also published as: WO2012116479A1; CN102155654A

Abstract

The invention discloses a lamp with a rotatable lamp cap. The lamp comprises lamp holders and a lamp cap, and is characterized in that: the lamp cap is connected with each lamp holder through a rotating shaft; the rotating shaft comprises four shaft heads which are distributed in a cross shape; each shaft head is provided with annular grooves formed along the circumferential direction of the shaft head; each annular groove is provided with a fastener capable of rotating relative to the corresponding shaft head; two opposite fasteners positioned on a first straight line of the cross shape of the rotating shaft are fixedly connected to the bottom of the lamp cap; and two opposite fasteners positioned on another straight line of the cross shape of the rotating shaft are fixedly connected to opposite lamp holders at the bottom of the lamp cap. The rotation of the lamp cap relative to the lamp holders is realized by adopting the cross-shaped rotating shaft, so that the lamp cap can be adjusted optionally in a 360-degree range relative to the lamp holders, the rotation adjusting range of the lamp cap is expanded, the illumination direction is more flexible, and a power supply lead can be effectively prevented from being knotted due to the rotation of the lamp cap; and moreover, the structure is more compact and the size of the lamp is greatly reduced.

Description

The light fixture that a kind of lamp holder can rotate

Technical field

The present invention relates to a kind of light fixture, the rotary light fixture of particularly a kind of lamp holder.

Background technology

In order to realize the flexible of illumination orientations, improve the scope of application and use flexibility of light fixture, the lamp holder of existing many light fixtures is designed to turntable.

Like the patent No. is that the Chinese utility model patent " LED projection lamp with adjustable angle " of ZL200820201330.7 discloses a kind of LED rising angle adjustable and uniform LED projection lamp with adjustable angle of illumination continuously; But the shot-light mounting structure in this patent is comparatively complicated; Lighting angle is regulated and is realized through angle adjustment plate; Can't realize the continuous adjustment of LED lamp light angle, make the angular adjustment underaction of LED lamp.

In addition,, when regulating the illumination direction of lamp holder, also to guarantee the reliable location of lamp holder, prevent that lamp holder from arbitrarily rotating for the rotating light fixture of lamp holder.Like the patent No. is that the Chinese utility model " a kind of light fixture rotary positioning structure device " of ZL200920133078.5 relates to a kind of light fixture rotary positioning structure device; Comprise by bulb and process light fixture, center that the lamp socket of one forms being provided with the holder that its lower end of boring a hole is nested in the bulb outer surface and reaching the annular fixed cap that is fixedly connected with the holder lower end, be provided with the annular flexible member between holder lower end and the bulb with bulb; The fixed cap lower end is nested in the bulb lower external face and closely contacts with bulb, bulb through flexible member and fixed cap can along around rotational positioning be connected.Though this patent can realize the angular adjustment of light fixture in 360 degree scopes; But the light fixture rotational structure in this patent is to realize through the cooperation between spherical lamp holder and the holder, globe lamp header structure processing trouble; And in order to assemble connection; Must in holder, reserve the vestibule that can hold bulb, it is little that this just makes the overall volume of light fixture to do, and is not suitable for the less occasion of the sort of installing space and uses.

Summary of the invention

Technical problem to be solved by this invention is a kind of compact conformation to be provided to above-mentioned prior art present situation, light fixture simple and that the littler lamp holder of volume can rotate is installed.

The present invention solves the technical scheme that above-mentioned first technical problem adopts: the light fixture that a kind of lamp holder can rotate; Include lamp socket and be placed in the lamp holder in this lamp socket rotationally; It is characterized in that: link to each other through a rotating shaft between said lamp holder and the lamp socket; Said rotating shaft includes four spindle noses that are positioned at same plane and are crossing distribution; Have the cannelure of circumferentially offering along this spindle nose on each spindle nose, each cannelure is provided with can be with respect to the buckle of this spindle nose rotation, and; Be positioned at the bottom that snap fit that two on cross first straight line of said rotating shaft establish relatively is connected said lamp holder, be positioned at the buckles that two on another straight line of cross of said rotating shaft establish relatively and then be fixedly connected on the said lamp socket of establishing relatively with this lamp holder bottom.

Installation and removal for ease, as preferably, described buckle is the Elastic buckle that cross section takes the shape of the letter U, the U-shaped openings of sizes of this buckle is just in time suitable with the cannelure external diameter of said spindle nose; Be positioned at buckle U-shaped opening that two on cross rotating shaft first straight line relatively establish bottom towards said lamp holder; This lamp holder bottom is offered two, and have can be respectively and the first fixing draw-in groove of corresponding buckle inserting; Be positioned at buckle U-shaped opening that two on another straight line of cross rotating shaft relatively establish towards said lamp socket, offering two on the inner bottom surface of this lamp socket can be respectively and the second fixing draw-in groove of corresponding buckle inserting.So, can buckle directly be snapped onto in the cannelure of spindle nose during installation, the openend of buckle then can insert in the corresponding draw-in groove, connects simple and convenient.

Consider the reliability of socket connection,, respectively form two retaining convex ribs on the U-shaped dual-side of said buckle to outer lug and interval setting as preferably.Two retaining convex ribs that are provided with at interval can play spacing effect up and down respectively after buckle inserts in the draw-in groove, prevent that effectively buckle from deviating from from draw-in groove.

As preferably, said lamp holder includes lampshade, lens, circuit board and heat sink, and wherein, said lens, circuit board and heat sink are placed in the said lampshade; Said circuit board is provided with led chip; Said lens are fixedly set in a side of said circuit board and establish relatively with said led chip; Said heat sink is fixedly set in the opposite side of said circuit board; Said first draw-in groove is opened on this heat sink, offers the through hole that supplies said led chip power lead to pass on this heat sink.So lamp holder is done as a whole, can change according to the different of illumination intensity and power, as long as lamp holder separated with buckle just can lamp holder be removed to be changed, do not influence being connected of lamp socket and rotating shaft, more convenient to operate.

In order to enlarge the scope of activities of rotating shaft; Make lamp holder have bigger adjusting angle; Preferred as further, said heat sink also offers groove between two said first draw-in grooves, is positioned at two the correcting and can get into this groove of said rotating shaft of this groove top.So, when lamp holder rotates, can enter into groove with the corresponding rotating shaft of this groove two ends and offset with the circuit board that is connected on the heat sink, make the scope of activities at these two ends of rotating shaft increase, thereby enlarged the rotation amplitude of lamp holder.

For the needs of installing; Preferred as further, also be connected with fixed cap on the said lamp socket, the cross section of this fixed cap is T-shaped; Include annular end face and vertical integrated axial plane with this end face; Wherein, the axial plane upper edge of said fixed cap circumferentially is distributed with a plurality of jacks, then is provided with in the position of the said jack of correspondence on the inner peripheral surface of said lamp socket and can plugs fixing elasticity card division with this jack.Consider that lamp socket possibly need in the whole embedding installing hole, at this moment, fixed cap can play the effect of axial limiting, and fixed cap can be selected material different and color, the environment facies collocation around assurance light fixture and the installing hole.

Be to realize the tight fit between the axis hole, as preferably, also be provided with two slots that are oppositely arranged and offer vertically on the outer peripheral face of said lamp socket, be provided with the radially elastic card of evagination in the said slot.Elastic card makes lamp socket pack into and can play a supporting role behind the installing hole, guarantees that the secure fixation between lamp socket and the installing hole connects.

Compared with prior art; The invention has the advantages that: adopt the rotating shaft of decussate texture to realize the rotation of lamp holder, make lamp holder can adjust at any angle in 360 degree scopes, enlarged the rotation adjustable range of lamp holder with respect to lamp socket with respect to lamp socket; Make illumination orientations more flexible; And this 360 degree regulative modes are not the revolutions around fixed axis, and are based on the rotation in the plane at cross rotating shaft place, can prevent effectively that power lead from tiing a knot because of the rotation of lamp holder; And the spindle nose of cross rotating shaft is provided with buckle, and lamp holder and lamp socket are through realizing and the linking to each other indirectly of rotating shaft with snap fit, and lamp holder is connected the mode of buckle with lamp socket simple and convenient, dismounting easily, make assemble and keep in repair more laborsaving fast; In addition; Owing to adopted the rotating shaft of decussate texture, lamp holder only needs less space with respect to lamp socket just can realize rotation, and structure is more compact; Reduced the volume of light fixture greatly; It is little more a lot of than the light fixture of existing rotatable lamp holder to make light fixture to accomplish, has not only saved material, has reduced cost.

Description of drawings

Fig. 1 is one of perspective view of the embodiment of the invention.

Fig. 2 be the embodiment of the invention perspective view two.

Fig. 3 is the three-dimensional exploded view of the embodiment of the invention.

Fig. 4 is the lamp holder assembly structure sketch map of the embodiment of the invention.

Fig. 5 is the partial assembled cutaway view (lamp holder and rotating shaft cooperate) of the embodiment of the invention.

Fig. 6 is the partial assembled cutaway view (lamp socket and rotating shaft cooperate) of the embodiment of the invention.

Fig. 7 is the pivot structure sketch map of the embodiment of the invention.

Fig. 8 is the buckle structure sketch map of the embodiment of the invention.

The specific embodiment

Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.

Like Fig. 1～shown in Figure 8, be specific embodiment of the present invention, this light fixture includes lamp holder 1, lamp socket 2 and rotating shaft 3, wherein, links to each other through rotating shaft 3 between lamp holder 1 and the lamp socket 2, and lamp holder 1 is placed in the lamp socket 2 rotationally.

The lamp holder 1 of present embodiment adopts the led light source illumination, and lamp holder 1 includes lampshade 11, lens 12, circuit board 13 and heat sink 14, all is placed in the lampshade 11 after lens 12, circuit board 13 and heat sink 14 assemblings; Circuit board 13 is provided with led chip, and lens 12 are fixedly set in a side of circuit board 13 and establish relatively with led chip, and heat sink 14 is fixedly set in the opposite side of circuit board 13; Offer through hole 143 on the heat sink 14, in this through hole 143, pass for the power lead 7 of the led chip power supply on the circuit board 13.The lamp holder 1 of present embodiment is based on the rotation in the plane, cross rotating shaft 3 place when rotating, rather than the rotation of wraparound rotating shaft, therefore, can prevent effectively that power lead 7 from tiing a knot in lamp holder 1 rotation process; In addition, the lamp holder 1 of present embodiment can adopt various structures in the prior art, and the lamp holder that present embodiment provided is merely wherein a kind of, and lamp holder can be used as an integral body and lamp socket and installs and cooperate or change after assembling, dismounting with safeguard very convenient.

The rotating shaft 3 that present embodiment connects lamp holder 1 and lamp socket 2 is the universal rotating shaft of a decussate texture; This rotating shaft 3 includes four and is positioned at same plane and integrated spindle nose 31; Four spindle noses 31 form the straight line of two square crossings in twos relatively; Have the cannelure of circumferentially offering 311 along this spindle nose 31 on each spindle nose 31, being provided with on each cannelure 311 can be with respect to the buckle 4 of these spindle nose 31 rotations;

Wherein, the Elastic buckle that buckle 4 takes the shape of the letter U for cross section, and; The U-shaped openings of sizes of this buckle 4 is just in time suitable with cannelure 311 external diameters of spindle nose 31; Therefore, after this buckle 4 is enclosed within on the spindle nose 31, can clamp spindle nose 31, can also guarantee and spindle nose 31 between can relatively rotate;

Two buckles 4 that are positioned on cross rotating shaft 3 first straight lines are established relatively; And the U-shaped opening of these two buckles 4 is towards the heat sink 14 that is positioned at lamp holder 1 bottom, and offering two on the heat sink 14 can be respectively and the corresponding buckle 4 first fixing draw-in groove 141 of inserting mutually; Two buckles 4 that are positioned on cross rotating shaft 3 another straight lines are also relatively established, and the U-shaped opening of this two buckle 4 is then towards lamp socket 2, and on the inner bottom surface of lamp socket 2, then offering two can be respectively and the second fixing draw-in groove 21 of corresponding buckle 4 insertings;

In order to improve the connection reliability of buckle and draw-in groove; Respectively form two retaining convex ribs 41 on the dual-side of the U-shaped opening of each buckle 4 to outer lug and interval setting; During installation; After buckle 4 inserted corresponding draw-in groove, two retaining convex ribs 41 were spacing with the realization that offsets of the last end face of respective card slot and bottom surface respectively, prevented that buckle 4 from deviating from from draw-in groove.

Buckle 4 structures that adopt present embodiment realized lamp holder 1 and lamp socket 2 respectively with being connected of cross rotating shaft 3; And buckle 4 is to realize and being connected of lamp holder 1, lamp socket 2 through the mode of pegging graft; Dismounting is convenient, and the change of the rotation elasticity between buckle 4 and the spindle nose 31 then can realize through the buckle 4 of selecting the different openings size, when the U-shaped opening of buckle 4 is big; Buckle 4 is less relatively with the contact friction force of spindle nose 31, and lamp holder 1 rotates comparatively light with respect to lamp socket 2; When the U-shaped opening of buckle 4 hour, the corresponding increase of contact friction force of buckle 4 and spindle nose 31, lamp holder 1 just rotates comparatively effort with respect to lamp socket 2, but the location that can realize lamp holder 1 better.

The lamp holder 1 of present embodiment is realized through criss-cross rotating shaft 3 with respect to the rotation of lamp socket 2; In order to increase the scope of activities that lamp holder 1 rotates; On the heat sink 14 that is positioned at lamp holder 1 bottom, can also offer a groove 142, this groove 142 is between two first draw-in grooves 141, and the two ends that rotating shaft 3 is positioned at these groove 142 tops can just in time can get into this groove 142 when rotating; Increase the slewing area of rotating shaft 3 thus, enlarged the lighting space of light fixture.

For can be conveniently with lamp installation in installing hole; Also be connected with a fixed cap 5 on the lamp socket 2; The cross section of this fixed cap 5 is T-shaped, include annular end face 51 with these end face 51 vertical integrated axial planes 52, wherein; Axial plane 52 upper edges of fixed cap 5 circumferentially are distributed with a plurality of jacks 521, then are provided with in the position of corresponding jack 521 on the inner peripheral surface of lamp socket 2 and can plug fixing elasticity card division 22 with this jack 521; Also be provided with two slots 23 that are oppositely arranged and offer vertically on the outer peripheral face of lamp socket 2, be provided with the radially elastic card 6 of evagination in the slot 23.When light fixture was installed, lamp socket 2 cooperated with installing hole, after lamp socket 2 inserts in the installing hole; Elastic card 6 can offset with the inwall of installing hole; Guarantee that lamp socket 2 is assemblied in the installing hole reliably, the annular end face 51 of fixed cap 5 can offset with the end face of installing hole, realizes the axial limiting of light fixture; But also can select the material and the color of fixed cap according to actual needs, guarantee that light fixture and the peripheral environment of installing hole match.

Claims

1. light fixture that lamp holder can rotate; Include lamp socket (2) and be placed in the lamp holder (1) in this lamp socket (2) rotationally; It is characterized in that: link to each other through a rotating shaft (3) between said lamp holder (1) and the lamp socket (2); Said rotating shaft (3) includes four spindle noses (31) that are positioned at same plane and are crossing distribution; Have the cannelure of circumferentially offering (311) along this spindle nose (31) on each spindle nose (31), each cannelure (311) is provided with can be with respect to the buckle (4) of this spindle nose (31) rotation, and; Be positioned at the bottom that buckle (4) that two on cross first straight line of said rotating shaft (3) establish relatively is fixedly connected on said lamp holder (1), be positioned at the buckles (4) that two on another straight line of cross of said rotating shaft (3) establish relatively and then be fixedly connected on the said lamp socket of establishing relatively with this lamp holder (1) bottom (2).

2. the light fixture that lamp holder according to claim 1 can rotate is characterized in that: the Elastic buckle that described buckle (4) takes the shape of the letter U for cross section, the U-shaped openings of sizes of this buckle (4) are just in time suitable with cannelure (311) external diameter of said spindle nose (31); Be positioned at buckle (4) U-shaped opening that two on cross rotating shaft (3) first straight lines relatively establish bottom towards said lamp holder (1); This lamp holder (1) bottom is offered two, and have can be respectively and fixing first draw-in groove (141) of corresponding buckle (4) inserting; Be positioned at buckle (4) U-shaped opening that two on another straight line of cross rotating shaft (3) relatively establish towards said lamp socket (2), offering two on the inner bottom surface of this lamp socket (2) can be respectively and fixing second draw-in groove (21) of corresponding buckle (4) inserting.

3. the light fixture that lamp holder according to claim 2 can rotate is characterized in that: respectively form two retaining convex ribs (41) to outer lug and interval setting on the U-shaped dual-side of said buckle (4).

4. the light fixture that lamp holder according to claim 3 can rotate; It is characterized in that: said lamp holder (1) includes lampshade (11), lens (12), circuit board (13) and heat sink (14); Wherein, said lens (12), circuit board (13) and heat sink (14) are placed in the said lampshade (11); Said circuit board (13) is provided with led chip; Said lens (12) are fixedly set in a side of said circuit board (13) and establish relatively with said led chip; Said heat sink (14) is fixedly set in the opposite side of said circuit board (13); Said first draw-in groove (141) is opened on this heat sink (14), offers the through hole (143) that supplies said led chip power lead to pass on this heat sink (14).

5. the light fixture that lamp holder according to claim 4 can rotate; It is characterized in that: said heat sink (14) also offers groove (142) between two said first draw-in grooves (141), is positioned at two the correcting and can get into this groove (142) of said rotating shaft (3) at this groove (142) top.

6. the light fixture that can rotate according to the described lamp holder of arbitrary claim in the claim 1～5; It is characterized in that: also be connected with fixed cap (5) on the said lamp socket (2); The cross section of this fixed cap (5) is T-shaped; Include annular end face (51) with the vertical integrated axial plane of this end face (51) (52); Wherein, axial plane (52) upper edge of said fixed cap (5) circumferentially is distributed with a plurality of jacks (521), then is provided with in the position of the said jack of correspondence (521) on the inner peripheral surface of said lamp socket (2) and can plugs fixing elasticity card division (22) with this jack (521).

7. the light fixture that lamp holder according to claim 6 can rotate is characterized in that: also be provided with two slots (23) that are oppositely arranged and offer vertically on the outer peripheral face of said lamp socket (2), be provided with the radially elastic card of evagination (6) in the said slot (23).