WO2022179488A1 - 锁固结构及灯具 - Google Patents

锁固结构及灯具 Download PDF

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Publication number
WO2022179488A1
WO2022179488A1 PCT/CN2022/077217 CN2022077217W WO2022179488A1 WO 2022179488 A1 WO2022179488 A1 WO 2022179488A1 CN 2022077217 W CN2022077217 W CN 2022077217W WO 2022179488 A1 WO2022179488 A1 WO 2022179488A1
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WIPO (PCT)
Prior art keywords
locking
connecting hole
locking portion
axis
structure according
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PCT/CN2022/077217
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English (en)
French (fr)
Inventor
章才水
马子才
顾选雄
Original Assignee
欧普照明股份有限公司
苏州欧普照明有限公司
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Publication of WO2022179488A1 publication Critical patent/WO2022179488A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
    • F16B25/10—Screws performing an additional function to thread-forming, e.g. drill screws or self-piercing screws
    • 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

Definitions

  • the present application relates to the technical field of machinery, and in particular, to a locking structure and a lamp.
  • Die casting is a kind of parts that are cast by pressure and are widely used in mechanical equipment accessories. There are many types of die castings, which can be used in electronics, automobiles, motors, home appliances and communications industries.
  • the die-casting parts need a locking structure for locking and fixing during the application process.
  • Most of the existing locking structures are screw locking structures, that is, the objects to be fixed are fixed in the threaded holes of the screw locking structures through screws.
  • the threaded holes of the existing thread locking structure are divided into tapping threaded holes and non-tapping threaded holes.
  • the inner hole is formed on the die-casting part first, and then the inner hole needs to be processed manually or mechanically.
  • burrs in the threaded holes which are easy to cause damage during assembly and disassembly.
  • the existing tap-free threaded holes are generally round, and the torque required for thread locking of the die-casting parts is large, which is time-consuming and labor-intensive.
  • An object of the present application is to provide a tapping-free locking structure with simple structure and low torque.
  • the present application provides a locking structure, comprising: a locking member and a locking body, the locking member includes an axially extending first locking portion, and the locking body is provided with a A connecting hole to which the fastener is matched, the connecting hole has a locking part and a vacating part, the vertical distance between the locking part and the axis of the connecting hole is smaller than the radius of the first locking part, and the vacating part is The vertical distance between the part and the axis of the connecting hole is greater than the radius of the first locking part.
  • the vertical distance between the locking portion and the axis of the connection hole is in the depth direction of the connection hole, and the open end of the connection hole is larger than the bottom of the connection hole.
  • an inclined guide surface is provided on the inner wall of the locking portion, which slopes downward and inward from the open end close to the connection hole to the bottom close to the connection hole.
  • the cross section of the locking portion in the direction perpendicular to the axis is arc-shaped.
  • a plurality of the locking portions are provided, the plurality of locking portions are concentric arcs, and the centers of the concentric arcs are located on the axis of the connecting hole.
  • the projection of the escape portion in the direction perpendicular to the axis is smaller than the projection of the locking portion in the direction perpendicular to the axis.
  • connection hole does not have a threaded structure, and the bottom of the connection hole is closed.
  • the fastener further includes a head and a second locking portion, the first locking portion is disposed below the head and extends axially downward from the head, The second locking portion is provided at one end of the first locking portion away from the head, and the diameter of the first locking portion is greater than or equal to the diameter of the second locking portion; and the first locking portion Both the locking portion and the second locking portion are provided with external threads.
  • Another object of the present application is to provide a lamp with the above locking structure.
  • the present application provides a lamp, including a cover, a housing, a lighting module and the above locking structure, the lighting module is locked and connected to the housing through the locking structure, so The face cover is located on a side of the lighting module away from the casing, and is fixedly connected with the casing.
  • the beneficial effects of the present application are: a locking structure of the present application and a lamp with the locking structure, by setting the vertical distance between the locking portion and the axis of the connecting hole to be smaller than the radius of the first locking portion, to achieve self-locking For tapping and locking, the vertical distance between the escape portion and the axis of the connecting hole is set greater than the radius of the first locking portion to reduce the torque during locking, and the operation is easy.
  • the vertical distance between the locking portion and the axis of the connecting hole is set on the locking body to be greater than the bottom of the connecting hole at the open end of the connecting hole, so as to facilitate the extrusion and locking of the locking element.
  • FIG. 1 is a perspective view of a locking structure according to a preferred embodiment of the present application.
  • FIG. 2 is an exploded view of the structure of FIG. 1 .
  • FIG. 3 is a top view of part of the structure in FIG. 1 .
  • FIG. 4 is a cross-sectional view from one perspective of FIG. 1 .
  • FIG. 5 is a cross-sectional view of FIG. 1 from another perspective.
  • FIG. 6 is a perspective view of a lamp according to a preferred embodiment of the present application.
  • FIG. 7 is an exploded view of the structure of FIG. 6 .
  • a locking structure 100 provided for this application includes: a locking member 1 and a locking body 2 .
  • the locking structure 100 of the present application is mainly used in the field of die castings, but should not be limited thereto.
  • the fastener 1 includes a head 11 , a first locking portion 12 and a second locking portion 13 extending axially.
  • the first locking portion 12 is disposed below the head portion 11 and extends axially downward from the head portion 11 .
  • the second locking portion 13 is disposed at an end of the first locking portion 12 away from the head portion 11 and extends from the first locking portion 12
  • the locking portion 12 extends axially downward.
  • the diameter of the first locking portion 12 is greater than or equal to the diameter of the second locking portion 13 , and both the first locking portion 12 and the second locking portion 13 are provided with external threads 14 .
  • the first locking portion 12 of the fastener 1 is cylindrical, the second locking portion 13 is conical, and the connecting end of the first locking portion 12 and the second locking portion 13 is the second locking portion 13
  • the big end of the cone, and the diameter of the big end of the cone is the same as the diameter of the first locking part 12 .
  • the diameter of the first locking portion 12 is larger than the diameter of the second locking portion 13 at other positions except the large conical end.
  • the first locking portion 12 and the second locking portion 13 are integrally formed and designed.
  • the first locking portion 12 and the second locking portion 13 are both provided with threads, and the thread pitches are equal.
  • first locking portion 12 and the second locking portion 13 may be separate structures, formed by assembly and connection, or the pitches of the first locking portion 12 and the second locking portion 13 are not equal. This application does not limit this.
  • the conical second locking portion 13 By arranging the conical second locking portion 13 , the locking member 1 can be easily penetrated, and the locking member 1 can be prevented from slipping in place if the locking member 1 cannot be attacked.
  • the locking body 2 is provided with a connecting hole 3 which is matched with the locking member 1 .
  • the first locking portion 12 and the second locking portion 13 of the locking member 1 protrude into the connecting hole 3 on the locking body 2 , and the head 11 of the locking member 1 is connected to the locking body 2 Outside of hole 3.
  • the connecting hole 3 does not have a threaded structure.
  • manual or mechanical tapping steps can be omitted, and the operator can be prevented from being hurt by burrs in the connecting hole 3 during the assembly and disassembly of the locking structure 100 .
  • the connecting hole 3 does not have a threaded structure, the problem of chips falling into the connecting hole 3 will not occur, the step of cleaning the connecting hole 3 can be omitted, the production cost is low, and it is suitable for mass production and application.
  • the connecting hole 3 has a locking portion 31 and a spaced portion 32 .
  • the vertical distance between the locking portion 31 and the axis of the connecting hole 3 is smaller than the radius of the first locking portion 12 .
  • the vertical distance between the escape portion 32 and the axis of the connection hole 3 is greater than the radius of the first locking portion 12 .
  • the vertical distance between the locking portion 31 and the axis of the connecting hole 3 is greater at the opening end 33 of the connecting hole 3 than at the bottom 34 of the connecting hole 3 .
  • the vertical distance between the locking portion 31 and the axis of the connecting hole 3 decreases in the depth direction of the locking body 2 from the open end 33 of the connecting hole 3 to the bottom 34 of the connecting hole 3 in sequence. .
  • the inner wall of the locking portion 31 By setting the inner wall of the locking portion 31 to decrease sequentially from top to bottom, it is convenient for the locking member 1 to be pushed in and locked.
  • the inner wall of the locking portion 31 is provided with an inclined guide surface, which slopes downward and inward from the open end 33 near the connecting hole 3 to the bottom 34 near the connecting hole 3.
  • the locking element 1 can be guided to squeeze into the bottom 34 of the connecting port from the open end 33 of the connection hole 3 to facilitate the pushing of the locking element 1 and reduce the torque required for locking.
  • the cross section of the locking portion 31 in the direction perpendicular to the axis is arc-shaped.
  • the structure of the locking portion 31 is more matched with the shape of the first locking portion 12 of the locking member 1, so as to increase the contact area between the locking portion 31 and the locking member 1, so that the The locking member 1 and the locking body 2 are firmly fixed.
  • the plurality of locking portions 31 are concentric arcs, and the centers of the concentric arcs are located on the axis of the connecting hole 3 . And the center of the circle is located on the axial centerline of the fastener 1 .
  • the shapes of the plurality of locking portions 31 and the locking member 1 can be more matched, so that the locking member 1 and the locking body 2 can be combined more closely.
  • the projection of the escape portion 32 in the direction perpendicular to the axis is smaller than the projection of the locking portion 31 in the direction perpendicular to the axis.
  • the cross-section of the escape portion 32 perpendicular to the axis direction is also arc-shaped.
  • the cross-section of the escape portion 32 perpendicular to the axis direction may also be in other shapes, which is not limited in this application, as long as The projection of the letting part 32 in the direction perpendicular to the axis may be smaller than the projection of the locking part 31 in the direction perpendicular to the axis.
  • the contact area between the locking portion 31 and the locking member 1 is larger than the contact area between the escaping portion 32 and the locking member 1, so as to increase the contact area between the locking portion 31 and the locking body 2, and at the time of reducing the torque
  • the stability of the locking structure 100 is improved.
  • two locking portions 31 are provided, and the two locking portions 31 are concentric arcs.
  • the bottom 34 of the connection hole 3 is closed. That is, in the depth direction of the locking body 2, the upper end of the connecting hole 3 is open and the lower end is closed.
  • the locking body 2 has a certain depth, that is, the contact area between the locking member 1 and the locking body 2 is lengthened, and the stability of the locking structure 100 is increased.
  • the locking member 1 is a screw
  • the first locking portion 12 of the screw is cylindrical with an external thread 14 on it
  • the outer diameter of the first locking portion 12 of the screw is 2.9cm
  • the second locking portion 13 of the screw is tapered, and is provided with an external thread 14 , and is integrally provided with the first locking portion 12 .
  • the locking body 2 is provided with a connection hole 3 that is matched with a screw, and the connection hole 3 is provided with a locking portion 31 and a space-saving portion 32, and the locking portion 31 and the space-saving portion 32 are respectively provided with two, and two The locking portion 31 and the two escape portions 32 are arranged at intervals.
  • the vertical distance between the locking portion 31 and the axis of the connection hole 3 is less than or equal to 1.3 cm, and the vertical distance between the escape portion 32 and the axis of the connection hole 3 is greater than 1.5 cm.
  • the vertical distance between the locking portion 31 and the axis of the connecting hole 3 is 1.3 cm, and at the bottom 34 of the connecting hole 3, the vertical distance between the locking portion 31 and the axis of the connecting hole 3 is 1.2cm.
  • the locking structure 100 of the present application can be applied in the field of die castings, and is used for locking and fixing the locked member on the locking body 2 .
  • the application takes the lamp 200 as an example for description, but the locking structure 100 of the application can also be applied to other die-casting parts, which is not limited here.
  • a lamp 200 with a locking structure 100 provided by the present application includes a cover 4 , a housing 5 , a lighting module 6 and the locking structure 100 described above.
  • the lighting module 6 is locked and connected to the housing 5 through the locking structure 100 .
  • the locking structure 100 includes a locking body 2 and a locking member 1 , and the locking body is provided with the above-mentioned connecting hole 3 .
  • the casing 5 has a receiving space, and the locking body 2 is arranged in the receiving space of the casing 5 .
  • the locking body 2 and the housing 5 are integrally formed.
  • the locking body 2 is provided with a connection hole 3 that cooperates with the locking member 1
  • the lighting module 6 is provided with a through hole 61
  • the locking member 1 is connected to the locking body 2 through the through hole 61 on the lighting module 6 .
  • the holes 3 are tightly connected to lock the lighting module 6 in the accommodating space of the housing 5 .
  • the housing 5 itself can also be used as the locking body 3 , which is not repeated here. Through this arrangement, the lighting module 6 can be easily locked and fixed inside the housing 5, the torque required for installation is reduced, the structure is simple, and the production cost is low.
  • the cover 4 is located on the side of the lighting module 6 away from the casing 5 and is fixedly connected to the casing 5 .
  • the cover 4 is provided with a first matching portion 41 that is snap-connected with the housing 5
  • the housing 5 is provided with a second matching portion (not numbered) matching the first matching portion 41 .
  • the face cover 4 is fixedly connected to the housing 5 to prevent dust, moisture, etc. from entering the interior of the lamp 200 .
  • the face cover 4 and the housing 5 can also be locked and fixed by the above-mentioned locking structure 100 . That is, the housing 5 is used as the locking body 2 , the above-mentioned connecting holes 3 are provided on the housing 5 , and the through holes are provided on the face cover 4 , and the locking member 1 passes through the through holes on the face cover 4 and the housing 5 .
  • the connecting holes 3 are fastened to connect the cover 4 to the casing 5.
  • the locking structure 100 of the present application and the lamp 200 having the locking structure 100 are simple in structure, and the locking body 2 is provided with the connecting hole 3 without threads, so as to save the processing cost and improve the Productivity.
  • the locking part 31 and the receding part 32 on the connecting hole 3 By arranging the locking part 31 and the receding part 32 on the connecting hole 3 to reduce the torque, the locking and fixing of the die-casting part can be easily and conveniently realized.
  • the opening end 33 of the connecting hole 3 is greater than the bottom 34 of the connecting hole 3, so as to facilitate the extrusion and locking of the locking element 1 .

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Abstract

一种锁固结构（100），包括：锁固件（1）和锁固本体（2），锁固件（1）包括轴向延伸的第一锁固部（12），锁固本体（2）上设有与锁固件（1）配合的连接孔（3），连接孔（3）具有锁紧部（31）和让位部（32），锁紧部（31）与连接孔（3）的轴线的垂直距离小于第一锁固部（12）的半径，让位部（32）与连接孔（3）的轴线的垂直距离大于第一锁固部（12）的半径。一种灯具（200），包括面盖（4）、壳体（5）、照明模组（6）以及锁固结构（100），照明模组（6）通过锁固结构（100）与壳体（5）锁固连接，面盖（4）位于照明模组（6）远离壳体（5）的一侧，且与壳体（5）固定连接。如此设置通过在锁固本体上设置不具有螺纹的连接孔，节省加工成本，提高生产效率。通过在连接孔上设置锁紧部和让位部，减小扭矩，轻松方便的实现对压铸件的锁紧和固定。通过在锁固本体上设置上大下小的连接孔，方便锁固件挤入和锁固。

Description

锁固结构及灯具
本申请要求了申请日为2021年2月26日，申请号为202120423663.X，发明名称为“锁固结构及灯具”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及机械技术领域，尤其涉及一种锁固结构及灯具。
背景技术
压铸件是一种通过压力铸造的零件，被广泛的应用于机械设备配件中。压铸件的种类有多种，可以应用于电子、汽车、电机、家电和通讯行业。
目前，压铸件在应用过程中大都需要锁固结构进行锁紧固定。现有的锁固结构大都为螺纹锁固结构，即通过螺丝将被固定物固定在螺纹锁固结构的螺纹孔内。而现有的螺纹锁固结构的螺纹孔分为攻牙螺纹孔和免攻牙螺纹孔。攻牙螺纹孔一般是先在压铸件上形成内孔，然后再需要人工或机械单独对内孔进行加工攻牙，耗时耗力，生产不稳定，生产成本较高。而且，螺纹孔内含有较多毛刺，容易在装配和拆卸过程造成伤害。现有的免攻牙螺纹孔一般为圆形，在对压铸件进行螺纹锁固时需要的扭矩较大，费时费力。
有鉴于此，确有必要提供一种锁固结构及灯具，以解决上述问题。
发明内容
本申请的一个目的在于提供一种结构简单，扭矩较低的免攻牙的锁固结构。
为实现上述目的，本申请提供了一种锁固结构，包括：锁固件和锁固本体，所述锁固件包括轴向延伸的第一锁固部，所述锁固本体上设有与所述锁固件配合的连接孔，所述连接孔具有锁紧部和让位部，所述锁紧部与所述连接孔的轴线的垂直距离小于所述第一锁固部的半径，所述让位部与所述连接孔的轴线的垂直距离大于所述第一锁固部的半径。
作为本申请的进一步改进，所述锁紧部与所述连接孔的轴线的垂直距离在所述连接孔的深度方向上，所述连接孔的开口端处大于在所述连接孔的底部。
作为本申请的进一步改进，所述锁紧部的内壁上设有斜导面，从靠近所述连接孔的开口端向靠近所述连接孔的底部向下向内倾斜。
作为本申请的进一步改进，所述锁紧部在垂直于所述轴线方向的截面为圆弧状。
作为本申请的进一步改进，所述锁紧部设有多个，多个所述锁紧部为同心圆弧，且所述同心圆弧的圆心位于所述连接孔的轴线上。
作为本申请的进一步改进，所述锁紧部设有两个，所述让位部设有两个，且所述锁紧部与所述让位部间隔设置。
作为本申请的进一步改进，所述让位部在垂直于所述轴线方向的投影小于所述锁紧部在垂直于所述轴线方向的投影。
作为本申请的进一步改进，所述连接孔不具有螺纹结构，且所述连接孔的底部封闭。
作为本申请的进一步改进，所述锁固件还包括头部和第二锁固部，所述第一锁固部设置在所述头部的下方，且从所述头部轴向向下延伸，所述第二锁固部设在所述第一锁固部远离所述头部的一端，所述第一锁固部的直径大于等于所述第二锁固部的直径；且所述第一锁固部和所述第二锁固部上均设有外螺纹。
本申请的另一个目的在于提供一种具有上述锁固结构的灯具。
为实现上述目的，本申请提供了一种灯具，包括面盖、壳体、照明模组以及上述锁固结构，所述照明模组通过所述锁固结构与所述壳体锁固连接，所述面盖位于所述照明模组远离所述壳体的一侧，且与所述壳体固定连接。
本申请的有益效果是：本申请的一种锁固结构及具有该锁固结构的灯具，通过将锁紧部与连接孔的轴线的垂直距离设置为小于第一锁固部的半径以实现自攻锁紧，通过设置让位部与连接孔的轴线的垂直距离大于第一锁固部的半径以减小锁固时的扭矩，操作轻便。另外，通过在锁固本体上设置锁紧部与连接孔的轴线的垂直距离在连接孔的开口端处大于连接孔的底部，以方便锁固件挤入和锁固。
附图说明
下面结合附图，通过对本申请的具体实施方式详细描述，将使本申请的技术方案及其它有益效果显而易见。
图1是本申请优选实施例的锁固结构的立体图。
图2是图1的结构爆炸图。
图3是图1中部分结构的俯视图。
图4是图1的一个视角的剖视图。
图5是图1另一个视角的剖视图。
图6是本申请优选实施例的灯具的立体图。
图7是图6的结构爆炸图。
具体实施方式
为了使本申请的目的、技术方案和优点更加清楚，下面结合附图和具体实施例对本申请进行详细描述。
在此，需要说明的是，为了避免因不必要的细节而模糊了本发明，在附图中仅仅示出了与本发明的方案密切相关的结构和/或处理步骤，而省略了与本发明关系不大的其他细节。
另外，还需要说明的是，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者设备所固有的要素。
请参阅图1-5所示，为本申请提供的一种锁固结构100，包括：锁固件1和锁固本体2，锁固本体2上设有与锁固件1配合的连接孔3，以实现对压铸件的锁紧和固定。本申请的锁 固结构100主要应用在压铸件领域，但不应以此为限。
锁固件1包括头部11，轴向延伸的第一锁固部12和第二锁固部13。第一锁固部12设置在头部11的下方，且从头部11轴向向下延伸，第二锁固部13设在第一锁固部12远离头部11的一端，且从第一锁固部12轴向向下延伸。第一锁固部12的直径大于等于第二锁固部13的直径，且第一锁固部12和第二锁固部13上均设有外螺纹14。
优选的，锁固件1的第一锁固部12为圆柱形，第二锁固部13为锥形，第一锁固部12与第二锁固部13的连接端为第二锁固部13的锥形的大端，且锥形的大端的直径与第一锁固部12的直径相同。第一锁固部12的直径大于第二锁固部13除锥形大端外的其他位置处的直径。第一锁固部12与第二锁固部13为一体成型设计，第一锁固部12与第二锁固部13上均设有螺纹，且螺距相等。在其他实施例中，第一锁固部12与第二锁固部13可以为分体结构，通过装配连接形成，或第一锁固部12与第二锁固部13的螺距不相等。本申请对此不作限制。通过设置锥形的第二锁固部13，可以使得锁固件1攻入方便，避免锁固件1攻不进去原地打滑。
请参阅图1所示，锁固本体2上设有与锁固件1配合的连接孔3。在锁固时，锁固件1的第一锁固部12与第二锁固部13伸入到锁固本体2上的连接孔3内，锁固件1的头部11位于锁固本体2上连接孔3的外部。进一步的，连接孔3不具有螺纹结构。通过设置不具有螺纹结构的连接孔3，可以省去人工或机械攻丝的步骤，并且能够避免锁固结构100在装配和拆卸过程中连接孔3内的毛刺对操作者造成伤害。另外，由于连接孔3不具有螺纹结构，就不会发生切屑落到连接孔3内部的问题，可以省去清洁连接孔3的步骤，生产成本较低，适合大规模生产和应用。
请参阅图3-5并结合图1所示，连接孔3具有锁紧部31和让位部32，锁紧部31与连接孔3的轴线的垂直距离小于第一锁固部12的半径。如此设置，可以使得锁固时，锁固件1的第一锁固部12和第二锁固部13能够挤入连接孔3内，实现自攻锁紧。让位部32与连接孔3的轴线的垂直距离大于第一锁固部12的半径。如此设置，可以使得让位部32与锁固件1的第一锁固部12具有间隙，当锁固件1进入连接孔3时，让位部32不参加受力，减小锁固过程中需要的扭矩，使得锁固结构100操作方便省力。
进一步的，在锁固本体2的深度方向上，锁紧部31与连接孔3的轴线的垂直距离在连接孔3的开口端33处大于在连接孔3的底部34。通过在连接孔3的开口端33处设置较大的垂直距离以方便锁固件1挤入连接孔3，通过在连接孔3的底部34设置较小的垂直距离以实现锁固件1与锁固本体2的锁紧和固定。
在本申请的一个实施例中，锁紧部31与连接孔3的轴线的垂直距离在锁固本体2的深度方向上，从连接孔3的开口端33到连接孔3的底部34依次减小。通过设置锁紧部31的内壁从上到下依次减小，以方便锁固件1的挤入和锁固。
在本申请的另一个实施例中，锁紧部31的内壁上设有斜导面，且从靠近连接孔3的开 口端33向靠近连接孔3的底部34向下向内倾斜。通过设置斜导面，能够引导锁固件1从连接孔3的开口端33挤入到连接口的底部34，以方便锁固件1的挤入，减小锁固时所需的扭矩。
请参阅图3所示，锁紧部31在垂直于轴线方向的截面为圆弧状。通过设置圆弧状的锁紧部31，使得锁紧部31的结构与锁固件1的第一锁固部12的外形更加匹配，以增大锁紧部31与锁固件1的接触面积，使得锁固件1与锁固本体2固定牢靠。
进一步的，锁紧部31设有多个，至少为两个。多个锁紧部31为同心圆弧，且同心圆弧的圆心位于连接孔3的轴线上。并且该圆心位于锁固件1的轴向中心线上。如此设置，可以使得多个锁紧部31与锁固件1的形状更加匹配，使得锁固件1与锁固本体2结合的更加紧密。
进一步的，让位部32在垂直于轴线方向的投影小于锁紧部31在垂直于轴线方向的投影。优选的，让位部32在垂直于轴线方向的截面也为圆弧状，在其他实施例内，让位部32垂直于轴线方向的截面也可以为其他形状，本申请对此不作限制，只要让位部32在垂直于轴线方向的投影小于锁紧部31在垂直于轴线方向的投影即可。如此设置，以使得锁紧部31与锁固件1的接触面积大于让位部32与锁固件1的接触面积，以增大锁紧部31与锁固本体2的接触面积，在减小扭矩的同时，提高锁固结构100的稳定性。优选的，锁紧部31设有两个，两个锁紧部31为同心圆弧。让位部32设有两个，且锁紧部31与让位部32间隔设置。
请参阅图4-5所示，连接孔3的底部34封闭。即在锁固本体2的深度方向上，连接孔3上端开口，下端封闭。在本申请中，锁固本体2具有一定的深度，即加长了锁固件1与锁固本体2接触的面积，增大锁固结构100的稳定性。
在本申请一较佳实施例内，该锁固件1为螺钉，螺钉的第一锁固部12为圆柱形，上面设有外螺纹14，螺钉的第一锁固部12的外径为2.9cm。螺钉的第二锁固部13为锥形，上面设有外螺纹14，且与第一锁固部12一体设置。锁固本体2上设有与螺钉配合的连接孔3，连接孔3上设有锁紧部31和让位部32，且锁紧部31和让位部32分别设有两个，且两个锁紧部31和两个让位部32间隔设置。锁紧部31与连接孔3的轴线的垂直距离小于等于1.3cm，让位部32与连接孔3的轴线的垂直距离大于1.5cm。在连接孔3的开口端33处，锁紧部31与连接孔3的轴线的垂直距离为1.3cm，在连接孔3的底部34处，锁紧部31与连接孔3的轴线的垂直距离为1.2cm。通过如此设置，可以实现锁固件1与锁固本体2的锁紧和固定，同时减小锁固时所需要扭矩，简单方便。
本申请的锁固结构100可以应用在压铸件领域，用于将被锁固件锁紧固定在锁固本体2上。为了描述清楚，本申请以灯具200为例进行了说明，但是本申请的锁固结构100也可以应用在其他压铸件上，在此不作限制。
请参阅图6-图7所示，为本申请提供的一种具有锁固结构100的灯具200，包括面盖4、壳体5、照明模组6以及上述的锁固结构100。
进一步的，照明模组6通过锁固结构100与壳体5锁固连接。锁固结构100包括锁固本体2与锁固件1，锁固本体上设有上述连接孔3。在本申请一较佳实施例中，壳体5具有收容空间，锁固本体2设在壳体5的收容空间内。优选的，锁固本体2与壳体5为一体成型结构。锁固本体2上设有与锁固件1配合的连接孔3，照明模组6上设有通孔61，锁固件1穿过照明模组6上的通孔61与锁固本体2上的连接孔3紧固连接，以将照明模组6锁固连接在壳体5的收容空间内。在其他实施例中，该壳体5本身也可作为锁固本体3，在此不再赘述。通过该设置，可以轻松的将照明模组6锁紧固定在壳体5的内部，减小安装所需要的扭矩，结构简单，生产成本较低。
进一步的，面盖4位于照明模组6远离壳体5的一侧，且与壳体5固定连接。在本申请一实施例中，面盖4上设有与壳体5卡扣连接的第一配合部41，壳体上5设有与第一配合部41匹配的第二配合部(未标号)，通过第一配合部41与第二配合部的卡扣连接，将面盖4固定连接在壳体5上，以防止灰尘水汽等进入灯具200的内部。
在其他实施例中，面盖4与壳体5也可以通过上述锁固结构100锁紧固定。即在壳体5作为锁固本体2，在壳体5上设有上述连接孔3，在面盖4上设有通孔，锁固件1穿过面盖4上的通孔与壳体5上的连接孔3紧固连接，以将面盖4锁固连接在壳体5上。
综上所述，本申请的一种锁固结构100及具有该锁固结构100的灯具200，结构简单，通过在锁固本体2上设置不具有螺纹的连接孔3，以节省加工成本，提高生产效率。通过在连接孔3上设置锁紧部31和让位部32，以减小扭矩，轻松方便的实现对压铸件的锁紧和固定。另外，通过在锁固本体2上设置锁紧部31与连接孔3的轴线的垂直距离在连接孔3的开口端33处大于连接孔3的底部34，以方便锁固件1挤入和锁固。
以上实施例仅用以说明本申请的技术方案而非限制，尽管参照较佳实施例对本申请进行了详细说明，本领域的普通技术人员应当理解，可以对本申请的技术方案进行修改或者等同替换，而不脱离本申请技术方案的精神和范围。

Claims (10)

  1. 一种锁固结构，其中，包括：锁固件和锁固本体，所述锁固件包括轴向延伸的第一锁固部，所述锁固本体上设有与所述锁固件配合的连接孔，所述连接孔具有锁紧部和让位部，所述锁紧部与所述连接孔的轴线的垂直距离小于所述第一锁固部的半径，所述让位部与所述连接孔的轴线的垂直距离大于所述第一锁固部的半径。
  2. 根据权利要求1所述的锁固结构，其中：所述锁紧部与所述连接孔的轴线的垂直距离在所述连接孔的深度方向上，所述连接孔的开口端处大于在所述连接孔的底部。
  3. 根据权利要求1所述的锁固结构，其中：所述锁紧部的内壁上设有斜导面，从靠近所述连接孔的开口端向靠近所述连接孔的底部向下向内倾斜。
  4. 根据权利要求1所述的锁固结构，其中：所述锁紧部在垂直于所述轴线方向的截面为圆弧状。
  5. 根据权利要求1所述的锁固结构，其中：所述锁紧部设有多个，多个所述锁紧部为同心圆弧，且所述同心圆弧的圆心位于所述连接孔的轴线上。
  6. 根据权利要求1所述的锁固结构，其中：所述锁紧部设有两个，所述让位部设有两个，且所述锁紧部与所述让位部间隔设置。
  7. 根据权利要求1所述的锁固结构，其中：所述让位部在垂直于所述轴线方向的投影小于所述锁紧部在垂直于所述轴线方向的投影。
  8. 根据权利要求1所述的锁固结构，其中：所述连接孔不具有螺纹结构，且所述连接孔的底部封闭。
  9. 根据权利要求1所述的锁固结构，其中：所述锁固件还包括头部和第二锁固部，所述第一锁固部设置在所述头部的下方，且从所述头部轴向向下延伸，所述第二锁固部设在所述第一锁固部远离所述头部的一端，所述第一锁固部的直径大于等于所述第二锁固部的直径；且所述第一锁固部和所述第二锁固部上均设有外螺纹。
  10. 一种灯具，其中：包括面盖、壳体、照明模组以及如权利要求1～9任一项所述的锁固结构，所述照明模组通过所述锁固结构与所述壳体锁固连接，所述面盖位于所述照明模组远离所述壳体的一侧，且与所述壳体固定连接。
PCT/CN2022/077217 2021-02-26 2022-02-22 锁固结构及灯具 WO2022179488A1 (zh)

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CN102853383A (zh) * 2011-06-30 2013-01-02 海洋王照明科技股份有限公司 锁固装置及其应用的灯具
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CN214788460U (zh) * 2021-02-26 2021-11-19 欧普照明股份有限公司 锁固结构及灯具

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CN102853383A (zh) * 2011-06-30 2013-01-02 海洋王照明科技股份有限公司 锁固装置及其应用的灯具
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CN214788460U (zh) * 2021-02-26 2021-11-19 欧普照明股份有限公司 锁固结构及灯具

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