WO2016041132A1 - 旋转灯头及旋转灯管 - Google Patents

旋转灯头及旋转灯管 Download PDF

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Publication number
WO2016041132A1
WO2016041132A1 PCT/CN2014/086542 CN2014086542W WO2016041132A1 WO 2016041132 A1 WO2016041132 A1 WO 2016041132A1 CN 2014086542 W CN2014086542 W CN 2014086542W WO 2016041132 A1 WO2016041132 A1 WO 2016041132A1
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WO
WIPO (PCT)
Prior art keywords
cap
positioning
lamp
cover
rotating
Prior art date
Application number
PCT/CN2014/086542
Other languages
English (en)
French (fr)
Inventor
冷华
黄前程
杨海涛
Original Assignee
深圳市豪恩光电照明股份有限公司
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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Application filed by 深圳市豪恩光电照明股份有限公司 filed Critical 深圳市豪恩光电照明股份有限公司
Priority to PCT/CN2014/086542 priority Critical patent/WO2016041132A1/zh
Publication of WO2016041132A1 publication Critical patent/WO2016041132A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/02—Controlling the distribution of the light emitted by adjustment of elements by movement of light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/04—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages the fastening being onto or by the light source

Definitions

  • the invention relates to the field of lamps, and in particular to a rotating lamp cap and a rotating lamp tube.
  • the lamps are illuminated by energizing the lamps at their ends.
  • a rotatable lamp tube appears on the market.
  • the rotatable lamp on the existing market the adjusting pin of the lamp head is automatically restored by the spring after moving, and when adjusting the illumination angle of the light emitting surface of the lamp tube, the lamp tube needs to be taken off from the lamp tube bracket, and the lamp caps at both ends of the lamp tube are sequentially rotated.
  • the lamp tube is installed back to the lamp tube bracket, so that the adjustment of the angle is difficult to be in place, resulting in multiple adjustments, and the operation is inconvenient. .
  • the technical problem to be solved by the present invention is to provide a rotating lamp cap and a rotating lamp tube which are capable of realizing an adjustable illumination angle of the light surface and simple and convenient operation.
  • the technical solution adopted by the present invention to solve the technical problem thereof is to provide a technical solution Rotating a lamp cap for mounting on an end of a tubular lamp body, the rotating lamp cap including an end cap disposed on an end of the lamp body, rotatably sleeved around the central axis of the lamp body a cap on the end cap, and a positioning member that is removably coupled to the cap in a direction parallel to the central axis;
  • the positioning member includes a body fitted on an outer circumference of the base cover, a positioning pin disposed on the body, and a positioning portion disposed on the positioning pin;
  • the end surface of the end cover is provided with a plurality of positioning slots for selectively inserting and positioning the positioning pins, and the positioning pins are inserted and positioned in the positioning slots by the positioning portion.
  • the positioning portion is disposed at an end of the positioning pin, and includes two arc-shaped protrusions protruding outwardly from the end of the positioning pin, and the protrusion is inserted into the positioning slot through the positioning slot.
  • Inner end face is disposed at an end of the positioning pin, and includes two arc-shaped protrusions protruding outwardly from the end of the positioning pin, and the protrusion is inserted into the positioning slot through the positioning slot.
  • a plurality of the positioning grooves are spaced apart in the circumferential direction of the end cover on a side end surface adjacent to the cap.
  • the peripheral wall of the cap is provided with a notch for the body to fit, and the shape of the notch corresponds to the shape of the body;
  • the planar shape of the body is rectangular; or the planar shape of the body is tapered, and the body faces the end cap with a larger width end.
  • the positioning member further includes an engaging portion connected between the body and the positioning pin, and the lamp cap cover is provided when the positioning member moves away from the end cover.
  • the card slot is engaged with the engaging portion, and the card slot is located on a side of the notch facing the end cover.
  • the positioning member further includes a limiting portion extending from opposite sides of the body, and the two limiting portions respectively fit on opposite sides of the notch and fit inside the cap cover.
  • a side of the end cap adjacent to the cap is provided with a concave annular step, the annular step is adjacent to the end surface, and the cap is adjacent to a side of the end cap Fitted on the outer circumference of the annular step.
  • the end cover is further provided with a plurality of spaced-apart scales, the scales are located on a side of the annular step away from the end surface, and a plurality of the scales respectively correspond to a plurality of the positioning slots.
  • the inside of the cap is provided with an inverted buckle extending toward the end cover, and the end surface of the end cap is provided with a through hole, and the end surface is further vertically extended along the periphery of the through hole a convex wall, the inverted buckle is rotatably buckled on the inner side of the end surface through the through hole along the convex wall;
  • the end surface is further provided with two resisting portions for resisting the positioning pin, and the two resisting portions are respectively located at two ends of the plurality of positioning slots and connected to the outer peripheral side surface of the protruding wall.
  • the invention also provides a rotating lamp tube, comprising a tubular lamp body and two rotating lamp heads respectively mounted on the two ends of the lamp body; the end cover of the rotating lamp cap is relatively fixed to the lamp body connection.
  • the lamp body comprises a tubular lamp housing and a light-emitting unit mounted in the lamp housing; a hook is provided on a side of the end cover away from the lamp cap, and an inner peripheral wall surface of the lamp housing corresponds to
  • the hook buckle is provided with a buckle groove, and the end cover is coupled to the lamp body by the hook fastener and the buckle groove.
  • the positioning member is locked on the end cover by positioning pin and the positioning portion and the positioning groove on the end cover, which is more stable than the restoring force of the spring by the restoring force of the spring.
  • the card cover is provided with a card slot to cooperate with the engaging portion, and the positioning member can be engaged with the lamp cover after the end cover is disengaged, thereby facilitating relative rotation between the end cover and the lamp cover. operating.
  • the positioning member is moved away from the end cover, and the light-emitting angle of the lamp body is adjusted relative to the rotating end cover of the lamp cap cover, and the lamp tube is not needed. Easy to remove from the lamp holder .
  • FIG. 1 is a schematic structural view of a rotating lamp cap according to an embodiment of the present invention.
  • Figure 2 is a schematic exploded view of the rotating lamp cap shown in Figure 1;
  • Figure 3 is a schematic view showing the structure of the rotating lamp head shown in Figure 2 in another direction;
  • Figure 4 is a structural schematic view showing the positioning member positioned on the end cover in the rotating lamp cap shown in Figure 2;
  • Figure 5 is a schematic view showing the structure of the rotating member of the rotating lamp cap of Figure 2 snapped onto the cap;
  • FIG. 6 is a schematic structural view of a rotating lamp tube according to an embodiment of the present invention.
  • Fig. 7 is a schematic view showing the adjustment of the illumination angle of the light-emitting surface of the rotary lamp shown in Fig. 6.
  • the rotating lamp cap of the invention is mounted on both ends of the tubular lamp body, and the illumination angle of the light-emitting surface of the lamp body is adjustable.
  • Fig. 1 shows a rotating lamp cap of an embodiment in which the rotating lamp caps mounted on both ends of the lamp body have the same structure.
  • the rotating lamp cap comprises an end cap 10, a cap cover 20 and a positioning member 30.
  • the end cap 10 is disposed on the end of the lamp body, and the cap cap 20 is rotatably sleeved on the end cap 10 around the central axis of the lamp body, and the positioning member 30 Cooperating on the base cover 20 in a direction along the central axis of the parallel lamp body;
  • the cap cover 20 and the end cap 10 are relatively rotatable, and the cap cap 20 and the end cap 10 are locked by the positioning member 30 after the desired angle of rotation.
  • the positioning member 30 includes a body 31 fitted on the outer circumference of the base cover 20, a positioning pin 32 disposed on the body 31, and a positioning portion 33 disposed on the positioning pin 32.
  • the positioning member 30 The body 31 mainly functions as an operation portion, and is mainly realized by moving the positioning member 30 by moving the body 31.
  • the end surface of the end cover 10 is provided with a plurality of positioning slots 11 for the selective insertion and positioning of the positioning pins 32.
  • the positioning pins 32 are inserted and positioned in the positioning slots 11 through the positioning portion 33.
  • the positioning portion 33 is disposed at the end of the positioning pin 32.
  • the positioning portion 33 may include two arc-shaped protrusions protruding outwardly from the end of the positioning pin 32.
  • the protrusion passes through the positioning slot 11 and is locked in the positioning slot 11
  • the inner end surface of the inner side is fixed in the positioning groove 11 as shown in FIG.
  • a plurality of positioning grooves 11 are spaced apart in the circumferential direction of the end cover 10 on one end surface adjacent to the cap cover 20.
  • the end cap 10 and the cap cover 20 are cylindrical structures with one end open, and the end cap 10 faces the cap cover 20 with the end face of the closed end, and the positioning groove 11 is located on the end face, and the cap cap 20 has an open end.
  • the sleeve is sleeved on the outer circumference of the end cap 10.
  • the peripheral wall of the cap 20 is provided with a notch 21 for engaging the body 31.
  • the shape of the notch 21 corresponds to the shape of the body 31.
  • the positioning member is driven. 30 is also rotated relative to the end cap 10, and the locating pin 32 is also moved thereon along the distribution of the plurality of locating slots 11.
  • the planar shape of the body 31 is tapered, and the body 31 has a larger width toward the end cap 10; the notch 21 is also tapered corresponding to the body 31.
  • the planar shape of the body 31 can also be a rectangle.
  • the positioning member 30 further includes a latching portion 34 connected between the body 31 and the positioning pin 32.
  • the cap cover 20 is provided with a card slot 22 and a card slot. 22 is located on the side of the notch 21 facing the end cover 10, and the card slot 22 is engaged with the engaging portion 34 when the positioning member 30 moves away from the end cover 10.
  • the positioning member 30 is pulled out of the positioning pin 32 and the positioning portion 33 is disengaged from the positioning slot 11
  • the positioning member 30 is engaged with the card slot 22 by the engaging portion 34 to be positioned on the cap cover 20, and does not recover by itself, and the rotating end is convenient.
  • the cover 10 is adjusted.
  • the arrangement of the engaging portion 34 and the card slot 22 further positions the positioning member 30 that has moved away from the end cap 10 on the base cover 20. It can be understood that when the body 31 and the notch 21 are tapered, the engaging portion 34 and the card slot 22 may not be provided; when the body 31 and the notch 21 are rectangular, the engaging portion 34 and the card slot 22 are preferably provided to move The positioning member 30 that has been detached from the end cap 10 is positioned on the cap cover 20.
  • the positioning member 30 further includes a limiting portion 35 extending from opposite sides of the body 31 .
  • the two limiting portions 35 respectively fit on opposite sides of the notch 21 and respectively fit inside the cap cover 20 .
  • the positioning member 30 is restrained in the notch 21 by the two limiting portions 35, and the positioning member 30 is prevented from coming out from above the notch 21.
  • the end of the end cover 10 adjacent to the base cover 20 is provided with a concave annular step 12, and the annular step 12 is adjacent to the end surface of the positioning slot 11, and the base cover 20 is adjacent to the end cover 10
  • One side of the circumference fits over the outer circumference of the annular step 12.
  • the end cover 10 is further provided with a plurality of spaced-apart scales 13 on the side of the annular step 12 away from the end surface, and the plurality of scales 13 respectively correspond to the plurality of positioning slots 11 so that the positioning groove 11 can be pushed out through the scale 13
  • the position is convenient for the alignment between the positioning pin 32 and the positioning groove 11 after the rotation.
  • a hook 16 can also be provided on the end cap 10 to connect with the lamp body.
  • the inside of the cap 20 is provided with an undercut 23 extending in the direction of the end cap 10.
  • the end cap 10 is provided with a through hole (not shown) on the end surface thereof, and a vertically extending convex wall 14 is further disposed on the end surface of the end cap.
  • the buckle 23 is rotatably buckled on the inner side of the end surface along the convex wall 14 through the through hole.
  • the arrangement of the undercut 23 is such that it does not separate from the end cap 10 when the cap 20 is rotated along the circumference of the end cap 10.
  • the end surface of the end cover 10 is provided with two resisting portions 15 for resisting the positioning pin 32.
  • the two resisting portions 15 are respectively located at two ends of the plurality of positioning slots 11 and are connected to the convex wall 14. On the outer side of the perimeter.
  • a rotating lamp tube includes a tubular lamp body 40 and two rotating heads, and two rotating lamp heads are respectively mounted on both ends of the lamp body 40, and the end caps of the rotating lamp cap are respectively 10 is fixedly connected to the lamp body 40, so that the end cover 10 and the lamp body 40 can rotate relative to the lamp cap 20, and the lamp body 40 can also be rotated by rotating the end cap 10 relative to the cap cover 20, thereby adjusting the light output of the lamp body 40.
  • Surface illumination angle is a surface illumination angle.
  • the lamp body 40 includes a tubular lamp housing 41 and a lighting unit (not shown) mounted in the lamp housing.
  • the rotating lamp tube is an LED lamp tube
  • the lighting unit includes an LED lamp source.
  • the cap 20 is located on the side of the end cap 10 away from the lamp body 40.
  • a hook 16 is disposed on a side of the end cap 10 away from the cap 20, and an inner peripheral wall surface of the lamp shell 41 is provided with a buckle corresponding to the hook 16
  • the groove (not shown) is connected to the lamp body 40 by the hook 16 and the buckle groove.
  • one side of the end cover 10 can be formed with a spring piece 17 through the notch, and the hook 16 is disposed on the elastic piece 17.
  • the elastic piece 17 When the end cover 10 is inserted into the lamp housing 41, the elastic piece 17 is deformed by the inner peripheral wall surface of the lamp housing 41, and is bent toward the central axis direction of the end cover 10. When the hook 16 reaches the buckle groove position, the elastic piece 17 passes the restoring force. The direction of the inner peripheral wall surface of the lamp housing 41 is deformed to drive the hook 16 into the buckle groove.
  • the rotating lamp tube is mounted on the bracket 50 when in use, and is electrically connected to the bracket 50 through the cap cover 20 at both ends.
  • the positioning member 30 on the lamp cap 20 is moved away from the end cover 10 along the central axis of the parallel lamp body 40, so that the positioning pin 32 is disengaged from the end cover 10, and the positioning member 30 is simultaneously
  • the lamp cap 40 can be positioned by the engaging portion 34; the lamp body 40 and the end cap 10 are rotated with reference to the scale 13 so that the cap 20 rotates around the central axis of the lamp body 40, so that the light-emitting surface of the lamp body 40 is illuminated toward the angle of the light.
  • the positioning member 30 is turned back to the positioning pin 32 to be inserted into the corresponding positioning slot 11, and the end cover 10 and the cap cover 20 are locked to complete the adjustment of the illumination surface illumination angle. It can be seen from the above process that when the illumination surface of the lamp body 40 is adjusted in the angle of illumination, it is not necessary to remove the lamp tube from the bracket 50, which is simple and convenient.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

一种旋转灯头及旋转灯管，旋转灯头包括设置在灯体端部上的端盖（10）、绕灯体的中心轴线可旋转地套接在端盖上的灯头盖（20）、以及沿平行所述中心轴线的方向可来回移动地配合在灯头盖上的定位件（30）；定位件（30）包括配合在灯头盖（20）外周上的本体（31）、设置在本体上的定位销（32）、以及设置在定位销（32）上的定位部（33）；端盖（10）的端面上设有数个供定位销（32）选择性插入定位的定位槽（11），定位销（32）插入并通过定位部（33）定位于定位槽（11）中。灯管出光面照射角度可调，且操作简单方便。

Description

旋转灯头及旋转灯管 技术领域
本发明涉及灯具领域，尤其涉及一种旋转灯头及旋转灯管。
背景技术
现有的LED灯具中，如LED灯管，工作时是通过其两端的灯头通电后使灯管发光。为了使灯管的出光面可根据照射角度需要进行调节，市场上出现了可旋转的灯管。现有市场上的可旋转灯管，灯头的调节插销移动后通过弹簧自动回复，调节灯管的出光面照射角度时，需要将灯管从灯管支架上取下来，依次转动灯管两端的灯头至灯管出光面朝向所需角度，再将灯管安装回灯管支架，这样角度的调节难以到位，导致需要多次调整，操作不方便 。
发明内容
本发明要解决的技术问题在于，提供一种实现出光面照射角度可调且操作简单方便的旋转灯头及旋转灯管。
本发明解决其技术问题所采用的技术方案是：提供 一种 旋转灯头，用于安装在管状的灯体的端部上，所述旋转灯头包括设置在所述灯体端部上的端盖、绕所述灯体的中心轴线可旋转地套接在所述端盖上的灯头盖、以及沿平行所述中心轴线的方向可来回移动地配合在所述灯头盖上的定位件；
所述定位件包括配合在所述灯头盖外周上的本体、设置在所述本体上的定位销、以及设置在所述定位销上的定位部；
所述端盖的端面上设有数个供所述定位销选择性插入定位的定位槽，所述定位销插入并通过所述定位部定位于所述定位槽中。
优选地，所述定位部设置在所述定位销的末端，包括在所述定位销末端向外凸设的两圆弧形突起，所述突起通过所述定位槽后卡设在所述定位槽的内侧端面；
数个所述定位槽沿所述端盖的圆周方向间隔地分布在靠近所述灯头盖的一侧端面上。
优选地，所述灯头盖的周壁上设有供所述本体配合的缺口，所述缺口的形状与所述本体的形状相对应；
所述本体的平面形状为矩形；或者，所述本体的平面形状为锥形，且所述本体以宽度较大的一端朝向所述端盖。
优选地，所述定位件还包括连接在所述本体和所述定位销之间的卡合部，所述灯头盖上设有在所述定位件向远离所述端盖的方向移动时、供所述卡合部卡合的卡槽，所述卡槽位于所述缺口正对所述端盖的一侧上。
优选地，所述定位件还包括自所述本体相对两侧延伸出的限位部，两个所述限位部对应所述缺口相对两侧而分别配合在所述灯头盖内侧。
优选地，所述端盖靠近所述灯头盖的一侧设有内凹的环形台阶，所述环形台阶与所述端面相邻接，所述灯头盖以其靠近所述端盖的一侧周缘配合在所述环形台阶外周上。
优选地，所述端盖上还设有数个间隔分布的刻度，所述刻度位于所述环形台阶远离所述端面的一侧，且数个所述刻度分别与数个所述定位槽相对应。
优选地，所述灯头盖的内部设有向所述端盖方向延伸的倒扣，所述端盖的端面上设有通孔，所述端面上沿所述通孔周缘还设有垂直延伸的凸壁，所述倒扣沿着所述凸壁穿过所述通孔可转动地扣搭在所述端面内侧；
所述端面上还设有两个用于抵挡所述定位销的抵挡部，两个所述抵挡部分别位于数个所述定位槽的两端且连接在所述凸壁的外周侧面上。
本发明还提供一种旋转灯管，包括管状的灯体、以及两个分别安装在所述灯体两端部上的上述的旋转灯头；所述旋转灯头的端盖与所述灯体相对固定连接。
优选地，所述灯体包括管状的灯壳以及安装在所述灯壳内的发光单元；所述端盖远离灯头盖的一侧上设有钩扣，所述灯壳的内周壁面对应所述钩扣设有扣槽，所述端盖通过所述钩扣和所述扣槽相配合而连接在所述灯体上。
本发明的旋转灯头，定位件通过定位销及定位部与端盖上定位槽定位而锁定在端盖上，较于现有技术中的通过弹簧的回复力抵顶更加稳固。此外，通过定位件上设置卡合部，灯头盖上设置卡槽与卡合部相配合，在定位件脱离端盖后可卡合在灯头盖上，方便端盖和灯头盖之间的相对转动操作。
使用该旋转灯头的旋转灯管，在调节灯体的出光照射角度时，移动定位件使其脱离端盖，相对灯头盖旋转端盖来调节灯体的出光照射角度即可，不需将灯管从灯管支架上取下，操作简单方便 。
附图说明
下面将结合附图及实施例对本发明作进一步说明，附图中：
图1是本发明一实施例的旋转灯头 的结构示意图；
图2是图1所示旋转灯头的分解结构示意图；
图3是图2所示旋转灯头另一方向上的结构示意图；
图4是 图2所示旋转灯头中定位件定位在端盖上的结构示意图；
图5是 图2所示旋转灯头中定位件卡合到灯头盖上的结构示意图；
图6是本发明一实施例的旋转灯管的结构示意图；
图7是图6所示旋转灯管出光面照射角度调节时的示意图。
具体实施方式
为了对本发明的技术特征、目的和效果有更加清楚的理解，现对照附图详细说明本发明的具体实施方式。
本发明的旋转灯头， 用于安装在管状的灯体的两端部上，实现灯体出光面照射角度可调。 图1示出了一实施例的旋转灯头，安装在灯体两端部上的旋转灯头结构相同。该旋转灯头包括端盖10、灯头盖20以及定位件30，端盖10设置在灯体端部上，灯头盖20绕灯体的中心轴线可旋转地套接在端盖10上，定位件30沿平行灯体的中心轴线的方向可来回移动地配合在灯头盖20上； 灯头盖20和端盖10之间可相对旋转，在旋转所需角度后通过定位件30将灯头盖20和端盖10锁定。
如图2、3所示，其中，定位件30包括配合在灯头盖20外周上的本体31、设置在本体31上的定位销32、以及设置在定位销32上的定位部33；定位件30的本体31主要起到操作部的作用，在移动定位件30时主要通过拨动本体31实现。对应定位件30的定位销32，端盖10的端面上设有数个定位槽11，供定位销32选择性插入定位，定位销32插入并通过定位部33定位于定位槽11中。在本实施例中，定位部33设置在定位销32的末端；定位部33可包括在定位销32末端向外凸设的两圆弧形突起，突起通过定位槽11后卡设在定位槽11的内侧端面，从而将定位销32稳固定位在定位槽11内，如图4所示。数个定位槽11沿端盖10的圆周方向间隔地分布在靠近灯头盖20的一侧端面上。
在本实施例中，端盖10和灯头盖20为一端开放的圆筒状结构，端盖10以封闭一端的端面朝向灯头盖20，且定位槽11位于该端面上，灯头盖20以开放端套接在端盖10的外周上。
如图2、3所示，灯头盖20的周壁上设有供本体31配合的缺口21，缺口21的形状与本体31的形状相对应；在灯头盖20相对端盖10旋转时，带动定位件30也相对端盖10旋转，且定位销32也沿数个定位槽11的分布在其上移动。在本实施例中，本体31的平面形状为锥形，且本体31以宽度较大的一端朝向端盖10；缺口21对应本体31也为锥形。当本体31沿着缺口21向远离端盖10方向移动时，本体31宽度较大的一端向着缺口21宽度较小的一端移动，并卡合其中，这样使得本体31移动后可被缺口21卡合定位。可以理解地，在其他实施例中，本体31的平面形状也可为矩形。
进一步地，如图3、5所示，在本实施例中，定位件30还包括连接在本体31和定位销32之间的卡合部34，灯头盖20上设有卡槽22，卡槽22位于缺口21正对端盖10的一侧上，卡槽22在定位件30向远离端盖10的方向移动时供卡合部34卡合。当拨动定位件30使其定位销32及定位部33脱离定位槽11后，定位件30通过卡合部34与卡槽22配合而定位在灯头盖20上，不会自行回复，方便旋转端盖10进行调节。卡合部34和卡槽22的设置进一步将移动脱离端盖10后的定位件30定位在灯头盖20上。可以理解地，当本体31和缺口21为锥形时，可不设卡合部34和卡槽22；当本体31和缺口21为矩形时，优选设置卡合部34和卡槽22，以将移动脱离端盖10后的定位件30定位在灯头盖20上。
另外，如图2、3所示，定位件30还可包括自本体31相对两侧延伸出的限位部35，两个限位部35对应缺口21相对两侧而分别配合在灯头盖20内侧，通过该两限位部35将定位件30限制在缺口21内，防止定位件30从缺口21上方脱出。
又如图2、3所示，端盖10靠近灯头盖20的一侧设有内凹的环形台阶12，环形台阶12与定位槽11所在端面相邻接，灯头盖20以其靠近端盖10的一侧周缘配合在环形台阶12外周上。端盖10上还设有数个间隔分布的刻度13，刻度13位于环形台阶12远离端面的一侧，且数个刻度13分别与数个定位槽11相对应，从而可通过刻度13推出定位槽11所在位置，方便旋转后定位销32和定位槽11之间的对准插接。端盖10上还可设有钩扣16以与灯体连接。
灯头盖20的内部设有向端盖10方向延伸的倒扣23，端盖10的端面上设有通孔（未标示），端面上沿通孔周缘还设有垂直延伸的凸壁14，倒扣23沿着凸壁14穿过通孔可转动地扣搭在端面内侧。倒扣23的设置使得在灯头盖20沿端盖10周缘旋转时，不会与端盖10分离。
此外，端盖10的定位槽11所在的端面上还设有两个用于抵挡定位销32的抵挡部15，两个抵挡部15分别位于数个定位槽11的两端且连接在凸壁14的外周侧面上。通过抵挡部15的设置，防止由于灯头盖20和端盖10相对旋转角度过大，导致定位销32脱离数个定位槽11所在的区域。
如图6所示，本发明一实施例的旋转灯管，包括管状的灯体40以及两个上述的旋转灯头，两个旋转灯头分别安装在灯体40两端部上，旋转灯头的端盖10与灯体40相对固定连接，从而端盖10和灯体40一起可相对灯头盖20旋转，通过相对灯头盖20旋转端盖10即可带动灯体40也旋转，从而调节灯体40的出光面照射角度。
灯体40包括管状的灯壳41以及安装在灯壳内的发光单元（未图示）；在本实施例中，该旋转灯管为LED灯管，其发光单元包括LED灯源。
灯头盖20位于端盖10远离灯体40的一侧。为了实现端盖10和灯体40的固定连接，参考图3所示，端盖10远离灯头盖20的一侧上设有钩扣16，灯壳41的内周壁面对应钩扣16设有扣槽（未图示），端盖10通过钩扣16和扣槽相配合而连接在灯体40上。进一步地，为了方便钩扣16和扣槽之间的可拆配合，端盖10的一侧可通过缺槽设置形成有弹片17，钩扣16设置在弹片17上。在端盖10插接到灯壳41上时，弹片17受灯壳41内周壁面挤压发生形变向端盖10中心轴方向弯曲，当钩扣16到达扣槽位置时，弹片17通过回复力向灯壳41内周壁面方向形变，带动钩扣16配合到扣槽中。
结合图2、3、6、7，该旋转灯管使用时安装在支架50上，通过两端的灯头盖20与支架50电连接。调节灯体40的出光面照射角度时，将灯头盖20上的定位件30沿平行灯体40的中心轴线向远离端盖10方向拨动，使定位销32脱离端盖10，同时定位件30可通过卡合部34定位在灯头盖20上；以刻度13为参照旋转灯体40及端盖10，从而灯头盖20绕灯体40的中心轴线旋转，使灯体40的出光面照射角度朝向所需要的角度；将定位件30往回拨至定位销32插接到对应定位槽11中，将端盖10和灯头盖20锁定，完成出光面照射角度的调节。从上述过程可知，灯体40的出光面照射角度调节时，不需将灯管从支架50上取下，简单方便。
以上所述仅为本发明的实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (10)

  1. 一种旋转灯头，用于安装在管状的灯体的端部上，所述旋转灯头包括设置在所述灯体端部上的端盖（10）、绕所述灯体的中心轴线可旋转地套接在所述端盖（10）上的灯头盖（20）、以及沿平行所述中心轴线的方向可来回移动地配合在所述灯头盖（20）上的定位件（30）；其特征在于，
    所述定位件（30）包括配合在所述灯头盖（20）外周上的本体（31）、设置在所述本体（31）上的定位销（32）、以及设置在所述定位销（32）上的定位部（33）；
    所述端盖（10）的端面上设有数个供所述定位销（32）选择性插入定位的定位槽（11），所述定位销（32）插入并通过所述定位部（33）定位于所述定位槽（11）中。
  2. 根据权利要求1所述的旋转灯头，其特征在于，所述定位部（33）设置在所述定位销（32）的末端，包括在所述定位销（32）末端向外凸设的两圆弧形突起，所述突起通过所述定位槽（11）后卡设在所述定位槽（11）的内侧端面；
    数个所述定位槽（11）沿所述端盖（10）的圆周方向间隔地分布在靠近所述灯头盖（20）的一侧端面上。
  3. 根据权利要求1所述的旋转灯头，其特征在于，所述灯头盖（20）的周壁上设有供所述本体（31）配合的缺口（21），所述缺口（21）的形状与所述本体（31）的形状相对应；
    所述本体（31）的平面形状为矩形；或者，所述本体（31）的平面形状为锥形，且所述本体（31）以宽度较大的一端朝向所述端盖（10）。
  4. 根据权利要求3所述的旋转灯头，其特征在于，所述定位件（30）还包括连接在所述本体（31）和所述定位销（32）之间的卡合部（34），所述灯头盖（20）上设有在所述定位件（30）向远离所述端盖（10）的方向移动时、供所述卡合部（34）卡合的卡槽（22），所述卡槽（22）位于所述缺口（21）正对所述端盖（10）的一侧上。
  5. 根据权利要求3所述的旋转灯头，其特征在于，所述定位件（30）还包括自所述本体（31）相对两侧延伸出的限位部（35），两个所述限位部（35）对应所述缺口（21）相对两侧而分别配合在所述灯头盖（20）内侧。
  6. 根据权利要求1所述的旋转灯头，其特征在于，所述端盖（10）靠近所述灯头盖（20）的一侧设有内凹的环形台阶（12），所述环形台阶（12）与所述端面相邻接，所述灯头盖（20）以其靠近所述端盖（10）的一侧周缘配合在所述环形台阶（12）外周上。
  7. 根据权利要求6所述的旋转灯头，其特征在于，所述端盖（10）上还设有数个间隔分布的刻度（13），所述刻度（13）位于所述环形台阶（12）远离所述端面的一侧，且数个所述刻度（13）分别与数个所述定位槽（11）相对应。
  8. 根据权利要求1所述的旋转灯头，其特征在于，所述灯头盖（20）的内部设有向所述端盖（10）方向延伸的倒扣（23），所述端盖（10）的端面上设有通孔，所述端面上沿所述通孔周缘还设有垂直延伸的凸壁（14），所述倒扣（23）沿着所述凸壁（14）穿过所述通孔可转动地扣搭在所述端面内侧；
    所述端面上还设有两个用于抵挡所述定位销（32）的抵挡部（15），两个所述抵挡部（15）分别位于数个所述定位槽（11）的两端且连接在所述凸壁（14）的外周侧面上。
  9. 一种旋转灯管，其特征在于，包括管状的灯体（40）、以及两个分别安装在所述灯体（40）两端部上的权利要求1-8任一项所述的旋转灯头；所述旋转灯头的端盖（10）与所述灯体（40）相对固定连接。
  10. 根据权利要求9所述的旋转灯管，其特征在于，所述灯体（40）包括管状的灯壳（41）以及安装在所述灯壳（41）内的发光单元；所述端盖（10）远离灯头盖（20）的一侧上设有钩扣（16），所述灯壳（41）的内周壁面对应所述钩扣（16）设有扣槽，所述端盖（10）通过所述钩扣（16）和所述扣槽相配合而连接在所述灯体（40）上。
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