WO2012139311A1 - 一种条形灯的密封结构 - Google Patents

一种条形灯的密封结构 Download PDF

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Publication number
WO2012139311A1
WO2012139311A1 PCT/CN2011/073424 CN2011073424W WO2012139311A1 WO 2012139311 A1 WO2012139311 A1 WO 2012139311A1 CN 2011073424 W CN2011073424 W CN 2011073424W WO 2012139311 A1 WO2012139311 A1 WO 2012139311A1
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WO
WIPO (PCT)
Prior art keywords
strip
sealing
lamp according
sealing structure
locking
Prior art date
Application number
PCT/CN2011/073424
Other languages
English (en)
French (fr)
Inventor
戴军历
Original Assignee
浙江捷莱照明有限公司
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Filing date
Publication date
Application filed by 浙江捷莱照明有限公司 filed Critical 浙江捷莱照明有限公司
Publication of WO2012139311A1 publication Critical patent/WO2012139311A1/zh

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Classifications

    • 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
    • F21V31/00—Gas-tight or water-tight arrangements
    • F21V31/005—Sealing arrangements therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S4/00—Lighting devices or systems using a string or strip of light sources
    • F21S4/20—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports
    • F21S4/28—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports rigid, e.g. LED bars
    • 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
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/16—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting
    • F21V17/164—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting the parts being subjected to bending, e.g. snap joints
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/75—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with fins or blades having different shapes, thicknesses or spacing
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/76—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
    • 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
    • F21V3/00—Globes; Bowls; Cover glasses

Definitions

  • the present invention relates to a lighting fixture, and more particularly to a sealing structure for a strip lamp, comprising a lamp body, a transparent lamp cover and a sealing strip;
  • the lamp body is a strip-shaped profile, and is provided with a u-shaped lamp slot;
  • the lamp slot is provided with a longitudinally extending sealing groove;
  • the sealing groove is disposed in the sealing groove, and the transparent lamp cover is disposed at the lamp slot portion through the sealing strip.
  • the Chinese utility model patent discloses a high-power wall washer with sealing performance, comprising a casing, the casing is provided with an opening accommodating space, and the opening of the accommodating space is provided with glass for accommodating
  • An aluminum-based circuit board is installed in the space, an LED lamp and a lens are mounted on the aluminum-based circuit board, and a plug is installed at both ends of the casing.
  • the end of the accommodation space is provided with a plug-sealing silicone pad, glass and casing and plug.
  • the joint is filled with a sealant layer, and a seal strip is arranged on the sealant layer at the opening of the accommodating space; preventing water from penetrating into the outer casing from the gap between the glass and the outer casing, thereby enhancing outdoor waterproof performance, It is good for protecting the wall washer and prolonging the service life of the wall washer.
  • Another sealing structure is to design a waterproof buckle on the profile as the lamp body to fix the waterproof rubber strip.
  • the sealing structure can be referred to the Chinese utility model patent with the announcement number CN20163681U.
  • the Chinese utility model patent discloses a cover sealing device for the wall washer, which is respectively arranged on the inner side of the upper plate of the upper part of the wall washer housing.
  • the pressing and sealing device is: a lifting block provided with a matching inclined surface at an upper end of the inclined surface of the surface of the fastening plate, the upper surface of the lifting block is a plane, the fastening plate is horizontally provided with a plurality of threaded holes, and is tightened by bolts Washing
  • a gasket is arranged between the bolt and the housing.
  • the sealing structure of the utility model adopts wedge-shaped blocks and bolts to push and pull, the structure is very complicated, and additional sealing is needed at the screw holes where the bolts are located, which increases the assembly difficulty of the lamps, reduces the assembly efficiency, and also increases the lamps.
  • the production cost of the exposed bolts affects the appearance of the luminaire.
  • a snap-fit structure is required.
  • the usual snap-fit structure uses the elastic deformation of the card strip or the card slot to achieve the snap-in. Because the snap-in structure of the structure adopts elastic deformation, it is difficult to adopt a single strip on the long strip lamp, and the segmented manner is bound to affect the sealing effect of the strip lamp.
  • the technical problem to be solved by the present invention is to provide a sealing structure of a strip lamp, which realizes the self-locking of the card strip by the structural cooperation of the card strip and the card slot, and realizes the self-locking by the elastic force of the sealing strip, so that one is adopted.
  • a simple structure realizes the waterproof sealing of the strip lamp.
  • a sealing structure of a strip lamp comprising a lamp body, a transparent lamp cover and a sealing strip;
  • the lamp body is a strip profile, and a U-shaped lamp is provided a sealing groove provided in the longitudinal direction of the lamp slot;
  • the sealing groove is disposed in the sealing groove, and the transparent lamp cover is disposed at the mouth of the lamp through the sealing strip;
  • a sealing strip is C-shapedly disposed on a side of the transparent lamp cover and locked by a shifting clamping mechanism composed of a card slot and a card strip;
  • the card slot is disposed at the mouth of the lamp slot and longitudinally a locking protrusion is disposed on the inner side wall of the card slot near the bottom portion, and a shifting protrusion is disposed on the outer side wall near the upper mouth portion;
  • the card strip has a T-shaped cross section, and is provided with a pressing a pressing plate portion on the sealing strip, a straight portion at a right angle downward to the pressing plate portion, and
  • the card strip is inserted into the card slot by means of the transfer and the self-locking of the card strip is realized by the elastic reaction force of the sealing strip, thereby realizing the waterproof sealing of the strip lamp, having the advantages of simple structure, simple assembly efficiency and no influence on the lamp Appearance.
  • the locking protrusion includes a locking surface below and an upper sliding surface thereon;
  • the locking hook includes a locking surface thereon and a sliding surface below thereof;
  • the upper sliding surface is opposite to the sliding surface;
  • the horizontal angle of the locking surface and the engaging surface are equal, both are 5 to 10 degrees;
  • the horizontal angle is 8 degrees.
  • a diagonal portion is further disposed between the straight portion of the card strip and the hook; the vertical angle of the oblique portion is 5 to 10 degrees, and the straight portion and the oblique portion are connected Corresponding to the transfer protrusion; as a further specific technical solution, the vertical angle is 8 degrees.
  • the inclined portion is arranged such that the stuck card is moved upward by the elastic force of the sealing strip by engaging the locking projection with the locking projection.
  • a card slot guiding arc surface is further disposed on the bottom of the card slot, and a card strip guiding arc surface matched with the card slot guiding arc surface is disposed on the card strip.
  • the card strip is smoothly introduced into the space of the lower portion of the locking projection, and the contact between the engaging surface and the locking surface is realized.
  • At least two longitudinal ribs are further disposed on the top surface and the bottom surface of the sealing strip; as a further specific technical solution, the ribs are three, and the upper ribs are sequentially from the inside to the outside. Increase.
  • the card strip is transferred to the initial implementation of the card to obtain a suitable upward elastic reaction force; at the same time, the ridges are increased from the inside to the outside to prevent the inner rib from being pressed out of the bead to affect the strip lamp. Appearance effect.
  • the invention discards the conventional snap-fit structure adopting the elastic deformation mode, and adopts a unique transfer locking structure, and realizes the self-locking of the card strip by the elastic force of the sealing strip.
  • the structural design of the present invention is ingenious, and the sealing effect is better because the entire sealing is applied to the elongated luminaire; and the luminaire has better appearance characteristics due to the sealing structure using the clamping strip to seal the tight seal.
  • the use of the card snap-in structure greatly improves the assembly efficiency of the lamp.
  • Figure 1 is a schematic perspective view of the present invention
  • Figure 2 is an enlarged view of A in Figure 1;
  • Figure 3 is a cross-sectional view of the lamp body of the present invention
  • Figure 4 is an enlarged view of B in Figure 3;
  • Figure 5 is a cross-sectional view of the sealing strip of the present invention.
  • Figure 6 is a cross-sectional view of the card strip of the present invention.
  • Figure 7 is a view showing the unloaded state of the card strip placed in the card slot in the present invention.
  • Figure 8 is a view showing the state of the card strip when the sealing strip is pressed by an external force
  • Figure 9 is a state in which the card strip is released after the external force is released after the card is inserted into the card slot;
  • the strip introduces a curved surface 507, a horizontal angle ⁇ , a vertical angle ⁇ , an external force F1, and an elastic reaction force F2.
  • a sealing structure of a strip lamp includes a lamp body 1, a transparent lamp cover 4, a sealing strip 3, and a strip 5.
  • the lamp body 1 is a strip-shaped profile, and is provided with a U-shaped lamp slot 101; a longitudinally penetrating sealing groove 103 is formed in the mouth of the lamp slot 101;
  • the weather strip 3 is disposed at the mouth of the light groove 101.
  • 8 heat dissipation fins 102 are disposed on the back surface of the lamp slot 101, and the illuminant 2 of the luminaire is disposed in the light groove 101.
  • the illuminant is an LED lamp;
  • the weather strip 3 is disposed at the mouth of the light groove 101.
  • a card slot 104 also extending longitudinally, is provided on the outer side of the sealing groove 103, and the card strip 5 is provided in the card slot 104.
  • the card slot 104 has a J-shaped cross section.
  • a locking protrusion 105 is disposed on the inner side wall of the card slot 104 near the bottom of the card slot 104 for locking the card strip 5.
  • the upper surface of the locking projection 105 is an upper sliding surface 107, and the lower surface is a locking surface 106.
  • the locking surface 106 is a flat surface with a horizontal angle ⁇ of 8 degrees.
  • a shifting projection 108 is disposed on the outer side wall of the card slot 104 near the upper opening of the card slot 104. The shifting projection 108 is used for the pivot point of the card strip 5 when it is snapped into the card slot 104.
  • an arcuate card slot guiding curved surface 109 is provided for guiding the jamming of the card strip 5.
  • the strip 5 has a T-shaped cross section, and a platen portion 501 is provided on the upper lateral section thereof.
  • the platen portion 501 faces the inner side of the lamp body 1 and the sealing groove 103 on the lamp body 1. correspond.
  • the vertical section of the clip 5 includes a straight portion 502 perpendicular to the lateral portion of the clip 5 and a slope 503 below the straight portion 502.
  • the inclined portion 503 is inclined outwardly with a vertical angle ⁇ of 8 degrees.
  • a locking hook 504 is disposed at a front end of the inclined portion 503, and a locking surface 505 is disposed on the upper surface of the locking hook 504, and a curved surface is formed on the lower surface of the locking hook 504;
  • the curved surface includes a head adjacent to the locking hook and a sliding surface 506 associated with the engaging surface and a strip guiding curved surface 507 associated with the inclined portion 503 for guiding the upper sliding surface 107 and the card slot on the locking projection 105
  • the face 109 cooperates to form a slip.
  • the sealing strip 3 has a C shape, and an opening portion thereof is used for snapping on a side of the lamp cover 4; three ribs 301 are provided on the upper and lower surfaces of the sealing strip 3; The pressing of the platen portion 501 produces a better sealing effect.
  • the lampshade is placed in the sealing groove on the mouth of the lamp slot 101. 103; placing the card strip 5 in the card slot 104 and pressing the platen portion 501 on the card strip 5 against the upper surface of the sealing strip 3, at this time, the inclined portion 503 on the strip 5 and the tilting convex portion From 108 contact, the sliding surface 506 is in contact with the upper slip surface 107 on the locking projection 105.
  • the card strip 5 is snapped into the card slot 104 by an external force.
  • the card strip 5 continues to the card slot 104.
  • the sliding portion of the locking hook 504 is further rotated in the C direction by the upper sliding surface 107, so that the head end of the locking hook 504 is turned to the outer side wall of the card slot 104, so that the card strip on the card strip 5 is introduced into the curved surface.
  • the 507 is in contact with the card slot introduction arc surface 109 in the card slot 104, and under the guidance of the card slot introduction cam surface 109, the lock hook 504 is snapped under the locking protrusion 105, and the card on the card strip 5
  • the joint 505 is in contact with the locking surface 106 under the locking projection 105.
  • the working principle of the present invention is that the card strip 5 and the card slot 104 realize the transfer locking and self-locking sealing structure by utilizing the elastic reaction force F2 of the sealing strip 3.
  • the specific embodiments are intended to provide a clearer understanding of the present invention and are not to be construed as limiting the scope of the invention, and various modifications may be made without departing from the spirit and scope of the invention. Obvious modifications are intended to be included within the scope of the appended claims.

Description

说 明 书
一种条形灯的密封结构
技术领域
本发明涉及一种照明灯具， 特别是涉及一种条形灯的密封结构， 其包括灯 体、 透明灯罩和密封条； 所述灯体为条形型材， 设有 u形灯槽； 在所述灯槽口 部设有纵向贯通的密封槽； 在所述密封槽中设有所述密封条， 所述透明灯罩通 过所述密封条设置在所述灯槽口部。
背景技术
在灯具照明应用中， 防水性能一直是评判灯具产品好坏的重要指标。 现有 技术通常是在玻璃与型材的接合处灌装密封胶。 该密封结构可参见公告号为
CN201293298Y的中国实用新型专利， 该中国实用新型专利公开了一种具密封性 能的大功率洗墙灯， 包括外壳， 外壳设置有开口的容置空间， 容置空间的开口 处安装有玻璃， 容置空间内安装有铝基线路板， 铝基线路板上安装有 LED灯和 透镜， 外壳的两端安装有堵头， 容置空间的端部安装有堵头密封硅胶垫， 玻璃 与外壳及堵头的连接处灌封有密封胶层， 位于容置空间开口处的密封胶层上安 装有边扣条； 防止水从玻璃与外壳之间的缝隙渗透进外壳内， 从而增强了户外 防水性能， 有利于保护洗墙灯， 延长洗墙灯的使用寿命。 但该密封结构在实际 生产中， 加工工艺复杂， 操作不易掌握， 而且还会带来后续的清洁问题。 另外 的密封结构是在作为灯体的型材上设计一个防水扣， 固定住防水橡胶条。 该密 封结构可参见公告号为 CN20163681U 的中国实用新型专利， 该中国实用新型专 利公开了一种洗墙灯之上盖密封装置， 在洗墙灯壳体上部两侧板的内侧分别沿 长度方向设有开口相对的 U型卡口， 两 U型卡口之间设置有透光镜片， 在 U型 卡口内的透光镜片的一侧设有压紧密封装置、 另一侧设置有密封条； 该压紧密 封装置是： 在紧固板上表面的斜面的上端对应设置有配合斜面的升降块， 升降 块的上表面为一平面， 紧固板上横向设置有若干个螺紋孔， 并用螺栓拉紧在洗 墙灯壳体的侧壁上， 在螺栓与壳体之间设有密封垫。 该实用新型的密封结构采 用楔形块和螺栓推拉， 结构非常复杂， 且在螺栓所在的螺孔处需增加额外的密 封， 加大了灯具的装配难度、 降低了装配效率， 同时也并增加了灯具的生产成 本， 其外露的螺栓影响了灯具的外观。 如要提高灯具的外观特性需采用卡接结 构。 而通常的卡接结构均采用卡条或卡槽的弹性变形来实现卡入。 而该结构的 卡入结构由于采用弹性变形， 很难在长条形灯具上采用单条卡条， 而采用分段 的方式， 势必影响条形灯具的密封效果。
发明内容
本发明要解决的技术问题是提供一种条形灯的密封结构， 其通过卡条和卡 槽的结构配合实现卡条的移转卡入并借助密封条的弹性力实现自锁， 使采用一 种简单的结构实现条形灯的防水密封。
本发明的上述技术问题主要是通过下述技术方案得以解决的： 一种条形灯 的密封结构， 包括灯体、 透明灯罩和密封条； 所述灯体为条形型材， 设有 u形 灯槽； 在所述灯槽口部设有纵向贯通的密封槽； 在所述密封槽中设有所述密封 条， 所述透明灯罩通过所述密封条设置在所述灯槽口部； 所述密封条呈 C形卡 设在所述透明灯罩的侧边并通过一由卡槽和一卡条组成的移转式卡紧机构锁 紧； 所述卡槽设置在所述灯槽口部并纵向贯通； 在所述卡槽内侧壁靠近底部处 设有一个锁止凸起， 在外侧壁靠近上口部设有一个移转凸起； 所述卡条截面呈 丁字形， 设有一个压紧在所述密封条上面的压板部、 与压板部直角向下的直部 和与所述压板部同一侧并与所述锁止凸起适配的锁钩。 通过该结构使卡条通过 移转的方式卡入卡槽并借助密封条的弹性反作用力实现卡条的自锁， 实现条形 灯的防水密封， 具有结构简单、 装配简易效率高并且不影响灯具的外观。
作为一种优选的技术方案： 所述锁止凸起包括其下面的锁止面和其上面的 上滑移面； 所述锁钩包括其上面的卡接面和其下面的下滑移面； 所述上滑移面 与所述下滑移面相对； 所述锁止面和卡接面的水平夹角相等， 均为 5〜10度； 作为进一步的具体技术方案， 所述水平夹角为 8度。 通过上滑移面和下滑移面 的配合， 使卡条产生移转卡入， 并且锁止面和卡接面的水平夹角为 5〜10度， 具体地为 8度， 使锁钩易于卡入， 但外力释放后在密封条的弹性力作用下实现 自锁。
作为一种优选的技术方案： 在所述卡条的直部和卡钩之间还设有一斜部； 所述斜部的垂直夹角为 5〜10度， 所述直部和斜部相接处对应所述移转凸起； 作为进一步的具体技术方案， 所述垂直夹角为 8度。 该斜部的设置使卡入的卡 条在密封条的弹力作用下， 通过与移转凸起配合锁止卡条向上移动。
作为一种优选的技术方案： 在所述卡槽底部还设有卡槽导入弧面， 在所述 卡条上设有与所述卡槽导入弧面配合的卡条导入弧面。 使卡条顺利导入锁止凸 起下部的空间， 实现所述卡接面与锁止面的接触。
作为一种优选的技术方案： 所述密封条顶面和底面上还设有至少二条纵向 的凸条； 作为进一步的具体技术方案， 该凸条为三条， 并且上面的凸条由内到 外依次增高。 使卡条在压入的初始实现卡条的移转并获取合适的向上弹性反作 用力； 同时， 由内到外依次增高的凸条设置， 防止内侧凸条挤压出压条外影响 条形灯的外观效果。
本发明摈弃了传统采用弹性变形方式的卡接结构， 而采用一种独特的移转 卡入结构， 并借助密封条的弹性力实现卡条的自锁。 本发明结构构思巧妙， 由 于在长条形灯具上采用整条密封， 其密封效果更好； 并且由于采用卡条压紧密 封条的密封结构， 使灯具具有更好的外观特性。 另外， 采用卡条卡入结构大大 提高了灯具的装配效率。
附图说明
图 1为本发明的立体结构示意图；
图 2为图 1中 A处放大图；
图 3为本发明中灯体的截面图； 图 4为图 3中 B处放大图；
图 5为本发明中密封条的截面图；
图 6为本发明中卡条的截面图；
图 7为本发明中卡条放置在卡槽中未受力状态；
图 8为本发明中卡条在外力作用下挤压密封条时的状态；
图 9为本发明中卡条在卡入卡槽后释放外力后的状态；
其中： 灯体 1、 灯槽 101、 散热鳍片 102、 密封槽 103、 卡槽 104、 锁止凸起 105、 锁止面 106、 上滑移面 107、 移转凸起 108、 卡槽导入弧面 109、 发光体 2、 密封条 3、 凸条 301、 灯罩 4、 卡条 5、 压板部 501、 直部 502、 斜部 503、 锁钩 504、卡接面 505、下滑移面 506、卡条导入弧面 507、水平夹角 α、垂直夹角 β、 外力 Fl、 弹性反作用力 F2。
具体实施方式
下面通过实施例， 并结合附图， 对本发明的技术方案作进一步具体的说明。 参见图 1和图 2， 一种条形灯的密封结构， 包括灯体 1、 透明灯罩 4、 密封 条 3和卡条 5。
参见图 3和图 4， 所述灯体 1为条形型材， 设有 U形灯槽 101 ; 在所述灯槽 101口部设有纵向贯通的密封槽 103; 所述透明灯罩 4通过所述密封条 3设置在 灯槽 101的口部。 在灯槽 101的背面上设有 8片散热鳍片 102， 灯具的发光体 2 设置在所述灯槽 101 中， 在本实施例中， 该发光体为 LED灯； 所述透明灯罩 4 通过所述密封条 3设置在所述灯槽 101的口部。 在所述密封槽 103的外侧设有 一个同样纵向贯通的卡槽 104， 在卡槽 104中设有所述卡条 5。
所述卡槽 104的截面呈 J字形， 在卡槽 104内的内侧壁上靠近卡槽 104底 部位置设有一个锁止凸起 105， 用于对所述卡条 5进行锁止。 所述锁止凸起 105 上面为呈弧形的上滑移面 107， 下面为锁止面 106; 该锁止面 106为一平面， 其 水平夹角 α为 8度。 在所述卡槽 104内的外侧壁上靠近所述卡槽 104上口处设有一个移转凸起 108。 该移转凸起 108用于所述卡条 5在卡入所述卡槽 104时的转动支点。
在所述卡槽 104内的外侧壁与底面交接处设有一个弧形的卡槽导入弧面 109， 用于引导所述卡条 5的卡入。
参见图 6，所述卡条 5的截面呈丁字形，在其上横向段设有一个压板部 501， 该压板部 501朝向所述灯体 1的内侧并与灯体 1上的密封槽 103位置对应。
所述卡条 5竖直段包括一个与卡条 5的横向段垂直的直部 502和在直部 502 下面的斜部 503， 该斜部 503呈向外倾斜， 其垂直夹角 β为 8度。 在所述斜部 503的头端设有一个锁钩 504， 在该锁钩 504的上面为一个卡接面 505， 下面为 一弧形面； 该弧形面包括靠近锁钩头部并与所述卡接面相联的下滑移面 506和 与所述斜部 503相联的卡条导入弧面 507，用于与所述锁止凸起 105上的上滑移 面 107和卡槽导入弧面 109配合， 形成滑移。
参见图 5， 所述密封条 3呈 C形， 其开口部分用于卡接在灯罩 4侧边； 在密 封条 3的上下面上设有三条凸条 301 ;用于在所述卡条 5的压板部 501的挤压下 产生更好的密封效果。
参见图 7-图 9， 本发明的密封结构在进行密封装配时， 先将密封条 3的开 口卡接在灯罩 4的侧边上后将灯罩放置在所述灯槽 101口部上的密封槽 103中； 将卡条 5放置在所述卡槽 104中并使卡条 5上的压板部 501压在所述密封条 3 的上面， 此时， 卡条 5上的斜部 503与移转凸起 108接触， 下滑移面 506与锁 止凸起 105上的上滑移面 107接触。
所述卡条 5通过外力卡入所述卡槽 104中。
当外力 F1作用在所述卡条 5的横向段上面时， 由于受移转凸起 108上反作 用力和锁止凸起 105上的上滑移面 107的滑移作用， 使卡条 5以移转凸起 108 为支点作 C向转动， 挤压密封条 3。
由于外力 F1大于密封条 3的弹性反作用力 F2，使卡条 5继续向卡槽 104下 部滑移， 所述锁钩 504在上滑移面 107的作用下继续作 C向转动， 使锁钩 504 头端转向卡槽 104内的外侧壁， 使卡条 5上的卡条导入弧面 507与卡槽 104中 的卡槽导入弧面 109接触， 并在卡槽导入弧面 109的引导下， 使所述锁钩 504 卡入所述锁止凸起 105下面， 卡条 5上的卡接面 505与锁止凸起 105下的锁止 面 106接触。
当卡条 5的锁钩 504卡入所述锁止凸起 105后， 释放外力 Fl， 卡条 5在密 封条 3的弹性反作用力 F2作用下按 D向回转， 使卡条 5上的卡接面 505与锁止 凸起 105下的锁止面 106卡紧， 此时， 卡条 5上的直部 502和斜部 503相接的 转角正好位于移转凸起 108处， 使卡条 5在密封条弹性反作用力 F2作用下卡紧 在卡槽中， 密封条 3在卡条 5的挤压下使灯罩 4与灯槽 101 口部形成紧密的密 封。
本发明的工作原理是卡条 5与卡槽 104利用密封条 3的弹性反作用力 F2实 现移转卡入并自锁的密封结构。 具体实施例是为了更清楚地理解本发明， 并不 作为对本发明权利的一种限制， 在不脱离本发明宗旨的前提下， 可以有各种各 样的变化， 所有这些对所述领域技术人员显而易见的修改将包括在本权利要求 的范围之内。

Claims

权利要求
1. 一种条形灯的密封结构， 包括灯体、 透明灯罩和密封条； 所述灯体为条形型 材， 设有 u形灯槽； 在所述灯槽口部设有纵向贯通的密封槽； 在所述密封槽 中设有所述密封条， 所述透明灯罩通过所述密封条设置在所述灯槽口部； 其 特征在于： 所述密封条呈 C形卡设在所述透明灯罩的侧边并通过一由卡槽和 一卡条组成的移转式卡紧机构锁紧； 所述卡槽设置在所述灯槽口部并纵向贯 通； 在所述卡槽内侧壁靠近底部处设有一个锁止凸起， 在外侧壁靠近上口部 设有一个移转凸起； 所述卡条截面呈丁字形， 设有一个压紧在所述密封条上 面的压板部、 与压板部直角向下的直部和与所述压板部同一侧并与所述锁止 凸起适配的锁钩。
2. 根据权利要求 1所述的条形灯的密封结构， 其特征在于： 所述锁止凸起包括 其下面的锁止面和其上面的上滑移面； 所述锁钩包括其上面的卡接面和其下 面的下滑移面； 所述上滑移面与所述下滑移面相对； 所述锁止面和卡接面的 水平夹角相等， 均为 5〜10度。
3. 根据权利要求 1所述的条形灯的密封结构， 其特征在于： 在所述卡条的直部 和锁钩之间还设有一斜部； 所述斜部的垂直夹角为 5〜10度， 所述直部和斜 部相接处对应所述移转凸起。
4. 根据权利要求 2所述的条形灯的密封结构， 其特征在于： 在所述卡条的直部 和锁钩之间还设有一斜部； 所述斜部的垂直夹角为 5〜10度， 所述直部和斜 部相接处对应所述移转凸起。
5. 根据权利要求 1或 2或 3或 4所述的条形灯的密封结构， 其特征在于： 在所 述卡槽底部还设有卡槽导入弧面， 在所述卡条上设有与所述卡槽导入弧面配 合的卡条导入弧面。
6. 根据权利要求 1或 2或 3或 4所述的条形灯的密封结构， 其特征在于： 所述 密封条顶面和底面上还设有至少二条纵向的凸条。
7. 根据权利要求 5所述的条形灯的密封结构， 其特征在于： 所述密封条顶面和 底面上还设有至少二条纵向的凸条。
8. 根据权利要求 2或 3或 4所述的条形灯的密封结构， 其特征在于： 所述锁止 面和卡接面的水平夹角相等， 均为 8度。
9. 根据权利要求 5所述的条形灯的密封结构， 其特征在于： 所述锁止面和卡接 面的水平夹角相等， 均为 8度。
10.根据权利要求 6所述的条形灯的密封结构， 其特征在于： 所述锁止面和卡接 面的水平夹角相等， 均为 8度。
11.根据权利要求 7所述的条形灯的密封结构， 其特征在于： 所述锁止面和卡接 面的水平夹角相等， 均为 8度。
12.根据权利要求 3或 4所述的条形灯的密封结构， 其特征在于： 所述垂直夹角 为 8度。
13.根据权利要求 5所述的条形灯的密封结构， 其特征在于： 所述垂直夹角为 8
14.根据权利要求 6所述的条形灯的密封结构， 其特征在于： 所述垂直夹角为 8
15.根据权利要求 7所述的条形灯的密封结构， 其特征在于： 所述垂直夹角为 8
16.根据权利要求 8所述的条形灯的密封结构， 其特征在于： 所述垂直夹角为 8
17.根据权利要求 9所述的条形灯的密封结构， 其特征在于： 所述垂直夹角为 8
18.根据权利要求 10所述的条形灯的密封结构， 其特征在于：所述垂直夹角为 8
19.根据权利要求 11所述的条形灯的密封结构， 其特征在于：所述垂直夹角为 8 根据权利要求 6所述的条形灯的密封结构， 其特征在于： 所述密封条顶面和 底面上纵向的凸条为三条， 并且上面的凸条由内到外依次增高。
根据权利要求 7所述的条形灯的密封结构， 其特征在于： 所述密封条顶面和 底面上纵向的凸条为三条， 并且上面的凸条由内到外依次增高。
根据权利要求 10所述的条形灯的密封结构， 其特征在于： 所述密封条顶面 和底面上纵向的凸 r由内到外依次增高。
根据权利要求 1 1 , 述的条形灯的密封结构， 其特征在于： 所述密封条顶面 和底面上纵向的凸 ：为三条， 并且上面的凸 r由内到外依次增高。
根据权利要求 14 , 述的条形灯的密封结构， 其特征在于： 所述密封条顶面 和底面上纵向的凸 ：为三条， 并且上面的凸 Γ由内到外依次增高。
根据权利要求 15 , 述的条形灯的密封结构， 其特征在于： 所述密封条顶面 和底面上纵向的凸 ：为三条， 并且上面的凸 Γ由内到外依次增高。
根据权利要求 16 , 述的条形灯的密封结构， 其特征在于： 所述密封条顶面 和底面上纵向的凸 ：为三条， 并且上面的凸 Γ由内到外依次增高。
根据权利要求 17 , 述的条形灯的密封结构， 其特征在于： 所述密封条顶面 和底面上纵向的凸 ：为三条， 并且上面的凸 Γ由内到外依次增高。
根据权利要求 18 , 述的条形灯的密封结构， 其特征在于： 所述密封条顶面 和底面上纵向的凸 ：为三条， 并且上面的凸 Γ由内到外依次增高。
根据权利要求 19 , 述的条形灯的密封结构， 其特征在于： 所述密封条顶面 和底面上纵向的凸 Γ由内到外依次增高。
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