Embedded frameless anti-dazzle spotlight

Abstract

The invention provides a pre-embedded frameless anti-dazzle spotlight, which relates to the technical field of lighting lamps and comprises a pre-embedded frame body, a lamp holder is rotatably arranged in the pre-embedded frame body, a heat dissipation body is arranged on the lamp holder, and a light source assembly is arranged in the heat dissipation body; an anti-dazzle cup is arranged in the lamp holder, and the light source assembly is located above the anti-dazzle cup and used corresponding to the anti-dazzle cup. At least three clamping and locking components are arranged on the embedded frame body, an included angle alpha is formed between the connecting lines of the adjacent clamping and locking components and the center of the embedded frame body, and the value of alpha is 90-120 degrees; the pre-embedded frame body comprises an outer frame piece, the outer frame piece is provided with an embedding table which protrudes upwards and is used for being embedded into an opening in a ceiling, the diameter of the outer frame piece is larger than that of the embedding table, and the outer frame piece is further provided with a ceiling connecting face which transversely extends outwards and protrudes out of the embedding table; and the clamping and locking part is connected to the embedding table. The ceiling fixing device has the beneficial effects that the ceiling is fixed in the mode that the clamping and locking component clamps the ceiling up and down, and the clamping effect is good; rotation is smooth, and heat dissipation performance is good.

Description

Technical Field

[0001] The invention relates to the technical field of lighting fixtures, in particular to a pre-buried frameless anti-glare spotlight. Background Art

[0002] Pre-buried spotlights are a type of lighting equipment that is installed on walls, ceilings, floors, etc. and fixed inside buildings. It usually consists of a small bulb and a sealed shell, and the direction and angle of light emission can be adjusted. The characteristics of pre-buried spotlights are that they do not take up extra space and have a simple appearance, while compared with ordinary spotlights, ordinary spotlights are more flexible and convenient.

[0003] Pre-buried spotlights need to be installed inside the building, usually requiring prior design and pre-buried installation during the construction process. During installation, grooves need to be cut and wires buried, and then the spotlights are sealed and installed in the wall or ceiling. This installation method makes pre-buried spotlights suitable for places that require overall lighting or key lighting, such as halls, corridors, meeting rooms, etc. They can set the lighting effect according to design requirements to provide an overall warm atmosphere.

[0004] At present, there are many patents on embedded spotlights, such as the announcement number CN 220506544 U, which discloses an embedded anti-glare spotlight, including a heat dissipation shell, one end of which is connected to a mounting ring, the inner wall of which is provided with a heat sink, and the end of the heat dissipation shell close to the mounting ring is provided with a radiator; one end of the mounting ring is provided with a lens shell, one end of the lens shell is provided with a light source frame, one side of the light source frame is provided with a lamp bead, and the lamp bead is located on the side of the radiator, and the lamp bead is connected to a driving power supply through a connecting line; the interior of the mounting ring is provided with a front ring, the lens shell is installed on the inner side of the front ring, and the interior of the lens shell is provided with a lens head; the outer side of the mounting ring is provided with an anti-glare embedded part, and the outer side of the anti-glare embedded part is fixedly connected with a mounting frame; and the outer side of the mounting frame is brushed with three layers of ash and putty. Among them, in this structure, the mounting frame is fixed by driving a fixing screw from bottom to top into the ceiling, thereby fixing the anti-glare embedded part and the entire spotlight. However, it is found from actual construction that fixing screws driven directly into the ceiling are not tight enough, which will cause the embedded parts to become loose, resulting in poor load-bearing effect and separation of the mounting frame from the ceiling, that is, cracking of the putty layer. Therefore, the existing technology needs to be improved and developed. Summary of the invention

[0005] The present invention overcomes the shortcomings of the prior art and provides a pre-buried frameless anti-glare spotlight with good fixing stability, smooth rotation and good heat dissipation.

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] A pre-embedded frameless anti-glare spotlight, comprising a pre-embedded frame, a lamp holder rotatably arranged in the pre-embedded frame, a heat sink arranged on the lamp holder, a light source assembly arranged in the heat sink; an anti-glare cup arranged in the lamp holder, the light source assembly is located above the anti-glare cup and is used correspondingly to the anti-glare cup; no less than three clamping and locking components are arranged on the pre-embedded frame, and the lines connecting adjacent clamping and locking components and the center of the pre-embedded frame have an angle α, and the value of α is 90-120°; the pre-embedded frame comprises an outer frame member, an embedding platform protruding upwards and used to embed in a hole on a ceiling is arranged on the outer frame member, the diameter of the outer frame member is larger than the diameter of the embedding platform, and the outer frame member also has a ceiling connecting surface extending outward laterally and protruding from the embedding platform; the clamping and locking components are connected to the embedding platform;

[0008] The clamping and locking component includes a frame, a threaded rod and a pressing piece. The threaded rod vertically penetrates the outer frame and is rotatably connected to the frame. The pressing piece is threadedly connected to the threaded rod, and the lower end of the threaded rod is connected to an adjusting joint. The frame includes a first side surface for limiting the rotation of the pressing piece to one side and a second side surface for limiting the rotation of the pressing piece to the other side. When the threaded rod is rotated to loosen the pressing piece, the pressing piece is abutted against the first side surface, and from a top view, the projection area of ​​the pressing piece is located inside the embedded platform. When the threaded rod is rotated to tighten the pressing piece, the pressing piece is abutted against the second side surface, and from a top view, the projection area of ​​the pressing piece extends outward to the ceiling interface, so that a ceiling clamping space is formed between the pressing piece and the ceiling interface.

[0009] Furthermore, the lower pressure piece is arranged in a bent shape, and the lower pressure piece includes a driving plate located at a low position and a clamping plate located at a high position, the driving plate is threadedly connected to the threaded rod, the driving plate is connected to one end of the connecting plate, and the other end of the connecting plate is connected to the clamping plate; the lower surface of the clamping plate protrudes downward and is provided with no less than two pressing teeth with pointed corners facing downward; the outer frame is provided with a first connecting hole, and the frame body is provided with a second connecting hole, the diameters of the first connecting hole and the second connecting hole are both larger than the diameter of the threaded rod, and the center of the first connecting hole and the center of the second connecting hole are both located on the same longitudinal axis; the threaded rod passes through the first connecting hole and the second connecting hole in sequence from bottom to top, and is connected with a nut at the top.

[0010] Furthermore, a lamp hole is reserved at the center of the outer frame corresponding to the anti-glare cup, the lower surface of the outer frame is flat and has a plurality of long grooves, and the plurality of long grooves radiate outward from the lamp hole as the center; the width of the long groove is 1.2 to 1.8 mm, and the length of the long groove is 13.5 to 16.5 mm; the adjustment joint is in the shape of a truncated cone with a small top and a large bottom, and the edges around the first connecting hole form a truncated cone arc surface that matches the outer surface of the adjustment joint.

[0011] Furthermore, a convex ring is formed on the outside of the lamp hole protruding downward, and a slope is formed on the outer surface of the convex ring. The slope is inclined and converges from top to bottom, and the inclination angle of the slope is 38 to 52 degrees.

[0012] Furthermore, no less than three first positioning beads are arranged on the side of the lamp holder, and the embedded frame also includes a mounting tube, the inner wall of the mounting tube is provided with a slide groove in an annular shape, the slide groove corresponds to the position of the first positioning bead, and the first positioning bead is slidably connected to the slide groove; the central axis of the mounting tube is perpendicular to the plane where the slide groove is located; a step position is formed around the bottom of the first positioning bead of the lamp holder, and a limiting block is protruding from the inner wall of the mounting tube to limit the movement of the step position.

[0013] Furthermore, slide rails are provided on both sides of the upper part of the lamp holder, and assembly grooves are correspondingly provided on both sides of the lower end of the heat sink, and the slide rails are slidably assembled in the assembly grooves to allow the heat sink to be slidably arranged on the lamp holder; the anti-glare cup is formed with a light entrance hole, and the light entrance hole corresponds to the light source assembly, and the light emitted by the light source assembly is irradiated into the anti-glare cup through the light entrance hole; a second positioning bead is provided in the assembly groove, and a plurality of positioning recessed holes are provided on the upper surface of the slide rail along the length direction of the slide rail, and the plurality of positioning recessed holes are arranged in sequence, and adjacent positioning recessed holes have an intersection and a transition arc surface lower than the upper surface of the slide rail is formed at the intersection.

[0014] Furthermore, the light entrance hole is opened and extends downward toward the sliding and tilting direction of the heat sink; the heat sink has an aperture ring, and the light source assembly is located above the aperture ring; when the heat sink slides to a maximum tilt angle relative to the lamp holder, an angle β is formed between the plane where the aperture ring is located and the upper end surface of the anti-glare cup, and the value of β is 22 to 30°, and at this time the aperture ring is completely on the side extending downward close to the light entrance hole with the central axis of the anti-glare cup as the boundary, and the vertical lines of the plane in the aperture ring are all located in the light entrance hole and maintain a certain distance from the lower edge of the light entrance hole.

[0015] Furthermore, a plurality of aluminum radiating fins are arranged on the heat sink, and air flow ducts are provided between adjacent aluminum radiating fins; an air inlet is provided on the side wall of the heat sink to expose the aluminum radiating fins and the air flow duct; and a smoothly inclined air flow guiding arc surface is formed below the air inlet.

[0016] Furthermore, when viewed from a top view, the projected area of ​​the heat sink is always located within the enclosed area of ​​the outer frame.

[0017] Furthermore, a plurality of reinforcing plates are provided in an annular shape around the periphery of the mounting tube.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The ceiling is fixed by clamping and locking components up and down, with good clamping effect and high stability; the lamp holder and the mounting tube of the embedded frame are assembled by means of positioning beads and slide grooves, which helps to ensure smooth rotation with low resistance; the lamp holder and the heat sink are used in combination with slide rails and assembly grooves, so that the angle of the heat sink can be adjusted smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 is a three-dimensional diagram of the embedded frameless anti-glare spotlight according to an embodiment of the present invention;

[0022] Figure 2 is a top view of the embedded frameless anti-glare spotlight according to an embodiment of the present invention;

[0023] Figure 3 yes Figure 2 Sectional view of section AA;

[0024] Figure 4 The structure of the embedded frame and the lamp holder according to the embodiment of the present invention is Figure 1 , viewed from above;

[0025] Figure 5 The top view of the embedded frame and the lamp holder according to the embodiment of the present invention Figure 1 ; At this time, the lower pressure piece is in a tightened and descending state;

[0026] Figure 6 The top view of the embedded frame and the lamp holder according to the embodiment of the present invention Figure 1 ; At this time, the lower pressure piece is in a loosened and rising state;

[0027] Figure 7 The structure of the embedded frame and the lamp holder according to the embodiment of the present invention is Figure 2 , viewed from below;

[0028] Figure 8 is a schematic diagram of a state where the embedded frame and the lamp holder are separated according to an embodiment of the present invention;

[0029] Fig. 9 It is a schematic diagram of the embedded frame according to the embodiment of the present invention being locked on the ceiling and painted with putty powder;

[0030] Fig.10 is a structural exploded view of the clamping and locking component according to an embodiment of the present invention;

[0031] Fig.11 is a schematic structural diagram of the pressing member according to an embodiment of the present invention;

[0032] Fig.12 The structure of the heat sink described in the embodiment of the present invention is shown in FIG. Figure 1 ;

[0033] Fig.13 The structure of the heat sink described in the embodiment of the present invention is shown in FIG. Figure 2 ;

[0034] Fig.14 is a schematic structural diagram of an anti-glare cup according to an embodiment of the present invention;

[0035] Fig.15 It is a schematic diagram of the structure of the slide rail described in an embodiment of the present invention.

[0036] In the figure:

[0037] 1. Embedded frame; 101. Outer frame; 1011. Ceiling interface; 1012. First connection hole; 1013. Lamp hole; 1014. Long groove; 1015. Cone arc surface; 102. Embedded platform; 103. Mounting tube; 1031. Slide groove; 1032. Limiting block; 2. Lamp holder; 201. Step position; 3. Heat sink; 301. Assembly groove; 302. Aperture; 303. Aluminum heat sink; 304. Air flow duct; 305. Air inlet; 306. Air flow guiding arc surface; 4. Light source assembly; 5. Anti-glare cup; 501. Inlet Light hole; 6, clamping and locking component; 601, frame; 6011, first side; 6012, second side; 6013, second connecting hole; 602, threaded rod; 603, pressing piece; 6031, driving plate; 6032, pressing plate; 6033, connecting plate; 6034, pressing teeth; 604, nut; 605, adjusting joint; 7, convex ring; 701, inclined surface; 8, first positioning bead; 9, slide rail; 901, positioning concave hole; 902, transition arc surface; 10, second positioning bead; 11, reinforcing plate; 12, ceiling; 13, putty layer. DETAILED DESCRIPTION

[0038] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0039] like Figures 1 to 15As shown, the cylinder of the present invention claims protection for a pre-embedded frameless anti-glare spotlight, including a pre-embedded frame 1, a lamp holder 2 is rotatably arranged in the pre-embedded frame 1, a heat sink 3 is arranged on the lamp holder 2, and a light source assembly 4 is arranged in the heat sink 3; during installation, a hole is first opened on the ceiling 12, and then the pre-embedded frame 1 is embedded and fixed in the ceiling 12, and then the lamp holder 2 and the heat sink 3 that have been fixed as one are inserted and assembled into the pre-embedded frame 1; an anti-glare cup 5 is arranged in the lamp holder 2, and the light source assembly 4 is located above the anti-glare cup 5 and is used corresponding to the anti-glare cup 5; the light in the light source assembly 4 will irradiate the anti-glare cup 5 to form refraction or reflection and then diverge; the anti-glare cup 5 is a prior art and will not be described here.

[0040] One of the technical points of the present invention is to solve the problem that the traditional embedded parts are simply fixed by screws, resulting in poor stability, easy separation, or gaps between the embedded parts and the ceiling. Specifically, the embedded frame 1 of the present invention is provided with no less than three clamping and locking components 6, such as Fig. 9 As shown ( Fig. 9 The diagram only shows the fixing structure of one of the clamping and locking components 6 and the ceiling 12 , but actually all the clamping and locking components 6 are fixed to the ceiling 12 . The clamping and locking components 6 are fixed to the ceiling 12 by clamping.

[0041] The embedded frame 1 includes an outer frame 101, on which an embedding platform 102 protruding upward is provided for embedding into a hole in the ceiling 12. Figure 1 It can be seen that the outer frame 101 and the embedding platform 102 are both circular in shape. The hole in the ceiling 12 is opened with reference to the size of the embedding platform 102. During installation, the embedding platform 102 is embedded upward into the hole. The upward protruding setting of the embedding platform 102 can prevent lateral movement after being embedded in the hole, and has good stability. On the other hand, it also helps the operator to use a caliper to measure the size of the hole. The diameter of the outer frame 101 is larger than the diameter of the embedding platform 102, and the outer frame 101 also has a ceiling connecting surface 1011 that extends laterally outward and protrudes from the embedding platform 102. When the embedding platform 102 is embedded upward into the hole in the ceiling 12, the ceiling connecting surface 1011 is connected to the lower surface of the ceiling 12.

[0042] The clamping and locking component 6 is connected to the embedding platform 102; specifically, the clamping and locking component 6 includes a frame body 601, a threaded rod 602 and a pressing piece 603, the threaded rod 602 vertically penetrates the outer frame 101 and is rotatably connected to the frame body 601, the pressing piece 603 is threadedly connected to the threaded rod 602, and the lower end of the threaded rod 602 is connected to an adjusting joint 605; the threaded rod 602 can be a bolt structure, and a nut is provided at the connection point corresponding to the bolt on the pressing piece 603, so that the rotation of the threaded rod 602 can drive the pressing piece 603 to move up and down; the connection method between the threaded rod 602 and the pressing piece 603 can also be transmitted by a structure method of a screw rod and a screw nut, for example, the threaded rod 602 is a screw rod, and a screw nut is provided in the pressing piece 603, and the lifting and lowering of the pressing piece 603 with the screw nut is controlled by the rotation of the screw rod; such structures are all prior arts and will not be described here. The frame 601 includes a first side surface 6011 for limiting the rotation of the pressing member 603 to one side and a second side surface 6012 for limiting the rotation of the pressing member 603 to the other side; Figure 4 , Figure 6 , Figure 7 , Fig.10 It can be seen that the designs of the first side surface 6011 and the second side surface 6012 are for example to limit the pressing piece 603 to rotate with the threaded rod 602, so that the pressing piece 603 will rise and fall when the threaded rod 602 rotates; by designing the texture of the threaded rod 602, the pressing piece 603 will fall when the threaded rod 602 rotates toward the second side surface 6012, and the pressing piece 603 will rise when the threaded rod 602 rotates toward the first side surface 6011; that is, when the threaded rod 602 is rotated to loosen the pressing piece 603, the pressing piece 603 will be attached to the first side surface 6011. On the side surface 6011, when viewed from the top, the projection area of ​​the pressing member 603 is located inside the embedding platform 102; when the threaded rod 602 is rotated to tighten the pressing member 603, the pressing member 603 is abutted against the second side surface 6012, and when viewed from the top, the projection area of ​​the pressing member 603 extends outward to the ceiling interface 1011, so that a ceiling clamping space is formed between the pressing member 603 and the ceiling interface 1011, and the ceiling 12 is clamped in the ceiling clamping space formed between the pressing member 603 and the ceiling interface 1011.

[0043] First of all Figure 5 as well as Figure 6 Description of the two states. Figure 6 The embedded frame 1 has been embedded into the opening of the ceiling 12. At this time, it is only necessary to control the pressing member 603 to press down. Fig. 9 As shown, the ceiling 12 can be pressed tightly. Therefore, from a top view, the projection area of ​​the pressing member 603 must extend outward to the ceiling interface 1011, so that the pressing member 603 and the ceiling interface 1011 have an intersection in the vertical direction, so that the ceiling 12 can be pressed tightly. Figure 5 , it can be a state before the embedded frame 1 is embedded into the opening of the ceiling 12, or it can be a state where it has been embedded into the ceiling 12 and removed from the ceiling 12; when it needs to be embedded into the ceiling 12, it is necessary to rotate the threaded rod 602 to control the downward pressing member 603 to rise, so that a sufficient clamping distance is reserved between the downward pressing member 603 and the ceiling contact surface 1011. As mentioned above, when the downward pressing member 603 rises, it is attached to the first side surface 6011. At this time, when viewed from the top, the projection area of ​​the downward pressing member 603 is located in the embedding platform 102, and the upper surface is also As has been explained, the size of the opening of the ceiling 12 is based on the embedding platform 102. Therefore, when the lower pressing piece 603 is stored within the range of the embedding platform 102, it will not hinder the embedded frame 1 from being inserted upward into the opening of the ceiling 12, which is convenient for installation. In addition, when it is necessary to remove the embedded frame 1 from the ceiling 12, just rotate the threaded rod 602 in the opposite direction. When the lower pressing piece 603 is slightly raised to release the clamping force on the ceiling 12, the lower pressing piece 603 will immediately rotate with the threaded rod 602 until it stops against the rear of the first side surface 6011, that is, it can be quickly removed from the ceiling 12. Figure 6 Status switch to Figure 5 In this state, the embedded frame 1 can be removed from the ceiling 12, and the pressing piece 603 will not cause interference, so the effect of quick removal is achieved, and the structure is ingenious.

[0044] Furthermore, the advantage of this clamping and pressing fixation using the cooperation of the pressing piece 603 and the ceiling interface 1011 is that there is no need to drill screw holes in the ceiling 12 for fixing, thereby not causing further damage to the ceiling 12 or affecting the stability of the ceiling 12 structure. In addition, it can also be used to clamp ceilings 12 of different thicknesses. In addition, the clamping method is much more stable than the traditional screw fixing method.

[0045] In the present invention, the number of the clamping and locking parts 6 is not less than three, and the angle α between the lines connecting the adjacent clamping and locking parts 6 and the center of the embedded frame 1 is 90-120°; in this embodiment, the number of the clamping and locking parts 6 is three, and the value of α is 120°; that is, the three clamping and locking parts 6 are equidistantly arranged. The purpose of this structure is to further enhance the fitting effect between the ceiling interface 1011 and the lower surface of the ceiling 12. Traditional embedded parts are only screwed on two symmetrical sides, but the other two sides without screws are prone to gaps with the ceiling. Therefore, the present invention adopts a multi-point fixing method, which can further enhance the tightness between the embedded frame 1 and the ceiling 12.

[0046] The lower pressing piece 603 is arranged in a bent shape, and the lower pressing piece 603 includes a driving plate 6031 located at a low position and a pressing plate 6032 located at a high position. The driving plate 6031 is threadedly connected to the threaded rod 602, and the driving plate 6031 is connected to one end of the connecting plate 6033, and the other end of the connecting plate 6033 is connected to the pressing plate 6032; when the threaded rod 602 rotates to drive the driving plate 6031 to descend, the pressing plate 6032 is driven to descend, and the lower surface of the pressing plate 6032 is protruding downward and provided with no less than two pressing teeth 6034 with pointed corners facing downward, and the pressing teeth 6034 are pressed on the ceiling 12, and combined with Fig. 9 As can be seen, when the lower pressing member 603 descends, it presses the ceiling 12 through the pressing plate 6032; the design principle of the high and low positions of the driving plate 6031 and the pressing plate 6032 is that Fig. 9 As can be seen from the arrow, looking at the force principle of the pressing piece 603 alone, the pressing plate 6032 is pressed against the ceiling 12 by the downward pulling force of the driving plate 6031, that is, a pull-down pressing method is adopted; the opposite is a downward pressing method (the downward pressing method refers to the driving plate 6031 being in a high position and the pressing plate 6032 being in a low position, which can be understood as using the pressing piece 603 upside down). The downward pressing method will cause the pressing piece 603 to easily flip at a certain angle, thereby having a poor pressing effect on the ceiling 12; and this downward pressing method in the present invention will only gradually enhance the pressing effect of the pressing teeth 6034 on the ceiling 12 as the driving plate 6031 descends, and the pressing effect is good. In addition, in this structure, the ceiling 12 is compressed by the compression teeth 6034, and the tip of the compression teeth 6034 is downward, so it is a point-pressure compression structure, and even if the pressure surface of the ceiling 12 is uneven, it does not affect the compression effect, which helps to maintain the compression effect of the compression plate 6032 on the ceiling 12. The number of compression teeth 6034 in each compression plate 6032 is not less than two, which helps to maintain the balance of the compression plate 6032, so that the compression plate 6032 will not deviate sideways when compressed.

[0047] The outer frame 101 is provided with a first connection hole 1012, and the frame body 601 is provided with a second connection hole 6013. The diameters of the first connection hole 1012 and the second connection hole 6013 are both larger than the diameter of the threaded rod 602, and the centers of the first connection hole 1012 and the second connection hole 6013 are both located on the same longitudinal axis. The threaded rod 602 passes through the first connection hole 1012 and the second connection hole 6013 from bottom to top, and is connected to a nut 604 at the top. Since the centers of the first connection hole 1012 and the second connection hole 6013 are both located on the same longitudinal axis, that is, the threaded rod 602 is arranged perpendicular to the plane where the outer frame 101 is located, the rotation control effect is good, and the nut 604 is used to prevent the threaded rod 602 from falling off downward.

[0048] A lamp hole 1013 is reserved at the center of the outer frame 101 and at the corresponding position of the anti-glare cup 5. The lower surface of the outer frame 101 is flat and has a plurality of elongated grooves 1014, which are radiated outward from the lamp hole 1013 as the center. The outer frame 101 is made by injection molding, so the provision of the elongated grooves 1014 can save materials and reduce injection materials on the one hand, and also reduce the weight of the outer frame 101 on the other hand, which is conducive to fixed installation and reduces the force of the clamping and locking component 6. In addition, when the entire spotlight is fixed, Fig. 9 As shown, a putty layer 13 is also applied on the lower surface of the outer frame 101, and the putty layer 13 is embedded in the elongated groove 1014, thereby helping the putty layer 13 to stay and adhere to the lower surface of the outer frame 101, that is, achieving the effect of enhancing the adhesion of the putty layer 13.

[0049] The width of the elongated groove 1014 is 1.2-1.8 mm, and the length of the elongated groove 1014 is 13.5-16.5 mm; in the present embodiment, the width of the elongated groove 1014 is 1.3 mm, and the length of the elongated groove 1014 is 15 mm; therefore, according to the inventor's experiments, this size can not only save materials and reduce weight, but also ensure good adhesion of the putty layer 13.

[0050] The lower surface of the adjusting joint 605 has a slot or a cross slot, which can be turned by a screwdriver to control the rotation of the threaded rod 602; Figure 7 As shown, the adjustment joint 605 is in the shape of a truncated cone with a small upper part and a large lower part, and the edges around the lower end of the first connecting hole 1012 form a truncated cone arc surface 1015 that matches the outer surface of the adjustment joint 605. That is, when the adjustment joint 605 can be matched and embedded in the truncated cone arc surface 1015, it does not affect the flatness of the lower surface of the outer frame 101, and avoids protrusions that affect the putty layer 13.

[0051] The lamp hole 1013 is formed with a convex ring 7 protruding downward, and the convex ring 7 is formed with an inclined surface 701 on the periphery. The inclined surface 701 is inclined downward and converges. Figure 7 as well as Fig. 9 It can be seen that, in fact, the downward protruding depth of the convex ring 7 is the thickness of the putty layer 13; when plastering the putty layer 13, the scraper for plastering the putty layer 13 is applied from the outside to the convex ring 7, that is, the scraper scrapes the upper edge of the convex ring 7 for smoothing, and the slope of the inclined surface 701 is set along the plastering direction, which helps the putty layer 13 to be tightly attached to the inclined surface 701, so that it is not easy to have a gap between the putty layer 13 and the convex ring 7; the inclination angle of the inclined surface 701 is 38~52°. In the present embodiment, the inclination angle of the inclined surface 701 is 45°. After experiments by the inventor, this angle can make the connection between the putty layer 13 and the convex ring 7 more dense.

[0052] The side of the lamp holder 2 is provided with no less than three first positioning beads 8, and the embedded frame 1 also includes a mounting tube 103, the inner wall of the mounting tube 103 is provided with a slide groove 1031 in an annular shape, the slide groove 1031 corresponds to the position of the first positioning bead 8, and the first positioning bead 8 is slidably connected to the slide groove 1031; the assembly of the first positioning bead 8 and the slide groove 1031 can make the lamp holder 2 smoothly rotate and connect in the mounting tube 103 to cooperate with the adjustment angle; the central axis of the mounting tube 103 is perpendicular to the plane where the slide groove 1031 is located, which helps to enhance the smooth rotation effect of the lamp holder 2 in the mounting tube 103. The lamp holder 2 is surrounded by a step position 201 located below the first positioning bead 8, and the inner wall of the mounting tube 103 is protrudingly provided with a limiting block 1032 that limits the movement of the step position 201. The positioning beads are a prior art. When subjected to pressure, the beads will move slightly inward to make way. Therefore, during assembly, after fixing the lamp holder 2 and the heat sink 3, the lamp holder 2 is forcibly inserted from bottom to top into the mounting tube 103, so that the first positioning bead 8 corresponds to the slide groove 1031; by setting the distance between the limiting block 1032 and the slide groove 1031, when the first positioning bead 8 just enters the slide groove 1031, the limiting block 1032 resists the limiting step position 201, preventing the lamp holder 2 from being further inserted into the mounting tube 103, thereby ensuring the accuracy of the installation.

[0053] Slide rails 9 are provided on both sides of the upper part of the lamp holder 2, and assembly grooves 301 are correspondingly provided on both sides of the lower end of the heat sink 3. The slide rails 9 are slidably assembled in the assembly grooves 301, so that the heat sink 3 is slidably arranged on the lamp holder 2; that is, the light source assembly 4 in the heat sink 3 can be tilted for illumination; in conjunction with the rotation of the lamp holder 2, the light source assembly 4 can be tilted and rotated 360° for illumination.

[0054] The anti-glare cup 5 is formed with a light entrance hole 501, which corresponds to the light source assembly 4. The light emitted by the light source assembly 4 is irradiated into the anti-glare cup 5 through the light entrance hole 501; a second positioning bead 10 is arranged in the assembly groove 301, and a plurality of positioning recessed holes 901 are arranged on the upper surface of the slide rail 9 along the length direction of the slide rail 9. When the heat sink 3 is tilted, the second positioning bead 10 moves in different positioning recessed holes 901 accordingly. On the one hand, it can achieve the positioning effect to prevent the heat sink 3 from moving by itself, and on the other hand, the second positioning bead 10 moves in the positioning recessed holes 901 when moving. When the second positioning bead 10 slides from one positioning recess 901 to the next positioning recess 901, it moves via the transition arc surface 902, and the transition arc surface 902 still has a certain guiding and positioning effect on the second positioning bead 10, so that the heat sink 3 can move smoothly and accurately when the angle is rotated.

[0055] The light entrance hole 501 is extended downward toward the sliding and tilting direction of the heat sink 3; the heat sink 3 has an aperture 302, and the light source assembly 4 is located above the aperture 302; when the heat sink 3 slides to the maximum tilt angle relative to the lamp holder 2, the plane where the aperture 302 is located forms an angle β with the upper end surface of the anti-glare cup 5, and the value of β is 22 to 30°, and at this time, the aperture 302 is completely located on the side extending downward close to the light entrance hole 501 with the central axis of the anti-glare cup 5 as the boundary, and the vertical lines of the midplane of the aperture 302 are all located in the light entrance hole 501 and maintain a certain distance from the lower edge of the light entrance hole 501.

[0056] like Figure 3 As shown, in this embodiment, the value of β is 28°. The inventors have found that this angle can ensure that the light from the aperture 302 will be projected into the light entrance hole 501 of the anti-glare cup 5, and will not be projected outside the light entrance hole 501 to cause light loss. Figure 3 In the figure, the ray with an arrow is a perpendicular line to the plane of the aperture 302. As can be seen from the figure, the rightmost perpendicular line is still kept at a certain distance from the lower edge of the light entrance hole 501. Even if the light from the aperture 302 is diffused to a certain extent, it still falls into the light entrance hole 501 of the anti-glare cup 5.

[0057] A plurality of aluminum fins 303 are arranged on the heat sink 3, and air ducts 304 are arranged between adjacent aluminum fins 303; an air inlet 305 is provided on the side wall of the heat sink 3 to expose the aluminum fins 303 and the air duct 304; a smoothly inclined airflow guiding arc surface 306 is formed below the air inlet 305. The airflow guiding arc surface 306 helps the airflow to enter from the air inlet 305, rise along the air duct 304 and finally be discharged from the top. The setting of the air inlet 305 makes the heat sink 303 have a chimney effect, that is, the hot air generated during operation forms an airflow that enters from the air inlet 305 and flows upward to be discharged, which helps to dissipate heat.

[0058] A plurality of reinforcing plates 11 are provided in an annular shape around the installation tube 103 , which helps to enhance the stability of the structure of the installation tube 103 .

[0059] from Figure 2 Looking from above, the projected area of ​​the heat sink 3 is always within the enclosed area of ​​the outer frame 101, that is, when the operator drills holes on the ceiling 12 for installation, the operator will also refer to the size of the outer frame 101 to measure the distance between the heat sink 3 and the keel on the ceiling 12. Therefore, as long as the distance between the heat sink 3 and the keel is greater than the diameter of the outer frame 101, the heat sink 3 will not touch the keel and affect its use no matter how it is tilted or rotated, thus avoiding affecting its use after installation. The structure is ingenious.

[0060] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. However, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pre-buried frameless anti-glare spotlight, characterized in that: The invention comprises an embedded frame (1), a lamp holder (2) is rotatably arranged in the embedded frame (1), a heat sink (3) is arranged on the lamp holder (2), and a light source assembly (4) is arranged in the heat sink (3); an anti-glare cup (5) is arranged in the lamp holder (2), and the light source assembly (4) is located above the anti-glare cup (5) and is used in correspondence with the anti-glare cup (5); and no less than three clamping and locking components (6) are arranged on the embedded frame (1), and the lines connecting adjacent clamping and locking components (6) and the center of the embedded frame (1) have a The angle α is 90 to 120°; the embedded frame (1) comprises an outer frame member (101), the outer frame member (101) is provided with an embedding platform (102) protruding upwards and used for embedding into a hole on the ceiling, the diameter of the outer frame member (101) is larger than the diameter of the embedding platform (102), and the outer frame member (101) also has a ceiling contact surface (1011) extending outwardly and protruding from the embedding platform (102); the clamping and locking component (6) is connected to the embedding platform (102); The clamping and locking component (6) comprises a frame (601), a threaded rod (602) and a pressing piece (603); the threaded rod (602) vertically penetrates the outer frame (101) and is rotatably connected to the frame (601); the pressing piece (603) is threadedly connected to the threaded rod (602); the lower end of the threaded rod (602) is connected to an adjusting joint (605); the frame (601) comprises a first side surface (6011) for limiting the pressing piece (603) from rotating to one side and a second side surface (6012) for limiting the pressing piece (603) from rotating to the other side; the threaded rod (602) is threadedly connected to the outer frame (101) and is rotatably connected to the frame (601); the pressing piece (603) is threadedly connected to the threaded rod (602); the lower end of the threaded rod (602) is connected to an adjusting joint (605); the frame (601) comprises a first side surface (6011) for limiting the pressing piece (603) from rotating to one side and a second side surface (6012) for limiting the pressing piece (603) from rotating to the other side; When the rod (602) loosens the pressing member (603), the pressing member (603) abuts against the first side surface (6011), and the projection area of ​​the pressing member (603) is located inside the embedding platform (102) when viewed from above. When the threaded rod (602) is rotated to tighten the pressing member (603), the pressing member (603) abuts against the second side surface (6012), and the projection area of ​​the pressing member (603) extends outward to the ceiling interface (1011) when viewed from above, so that a ceiling clamping space is formed between the pressing member (603) and the ceiling interface (1011).

2. The embedded frameless anti-glare spotlight according to claim 1, characterized in that: The lower pressing member (603) is arranged in a bent shape, and the lower pressing member (603) comprises a driving plate (6031) located at a lower position and a pressing plate (6032) located at a higher position, the driving plate (6031) is threadedly connected to the threaded rod (602), the driving plate (6031) is connected to one end of the connecting plate (6033), and the other end of the connecting plate (6033) is connected to the pressing plate (6032); the lower surface of the pressing plate (6032) is protruding downward and is provided with no less than two pressing teeth (6034) with pointed corners facing downward; the outer frame member (1 01) is provided with a first connecting hole (1012), and the frame (601) is provided with a second connecting hole (6013), the diameters of the first connecting hole (1012) and the second connecting hole (6013) are both larger than the diameter of the threaded rod (602), and the center of the first connecting hole (1012) and the center of the second connecting hole (6013) are both located on the same longitudinal axis; the threaded rod (602) passes through the first connecting hole (1012) and the second connecting hole (6013) from bottom to top, and is connected to a nut (604) at the top.

3. The embedded frameless anti-glare spotlight according to claim 2, characterized in that: A lamp hole (1013) is reserved at the center of the outer frame (101) and at a position corresponding to the anti-glare cup (5); the lower surface of the outer frame (101) is flat and provided with a plurality of elongated grooves (1014); the plurality of elongated grooves (1014) are radiated outwards from the lamp hole (1013) as the center; the width of the elongated groove (1014) is 1.2 to 1.8 mm, and the length of the elongated groove (1014) is 13.5 to 16.5 mm; the adjustment joint (605) is in the shape of a truncated cone with a small top and a large bottom, and the edges around the first connection hole (1012) form a truncated cone arc surface (1015) that matches the outer surface of the adjustment joint (605).

4. The embedded frameless anti-glare spotlight according to claim 3, characterized in that: The lamp hole (1013) protrudes downward to form a convex ring (7), and the convex ring (7) is formed with an inclined surface (701) on the outer surface around it. The inclined surface (701) is inclined and converges from top to bottom, and the inclination angle of the inclined surface (701) is 38-52 degrees.

5. The embedded frameless anti-glare spotlight according to any one of claims 1 to 4, characterized in that: The side of the lamp holder (2) is provided with no less than three first positioning beads (8), the embedded frame (1) also includes a mounting tube (103), the inner wall of the mounting tube (103) is provided with a slide groove (1031) in an annular shape, the slide groove (1031) corresponds to the position of the first positioning beads (8), and the first positioning beads (8) are slidably connected to the slide groove (1031); the central axis of the mounting tube (103) is perpendicular to the plane where the slide groove (1031) is located; the lamp holder (2) is provided with a step position (201) around the lower side of the first positioning beads (8), and the inner wall of the mounting tube (103) is provided with a limiting block (1032) that limits the movement of the step position (201) in a protruding manner.

6. The embedded frameless anti-glare spotlight according to claim 5, characterized in that: Slide rails (9) are arranged on both sides of the upper part of the lamp holder (2), and assembly grooves (301) are correspondingly arranged on both sides of the lower end of the heat sink (3). The slide rails (9) are slidably assembled in the assembly grooves (301) so that the heat sink (3) is slidably arranged on the lamp holder (2); the anti-glare cup (5) is formed with a light entrance hole (501), the light entrance hole (501) corresponds to the light source assembly (4), and the light emitted by the light source assembly (4) is irradiated into the anti-glare cup (5) through the light entrance hole (501); a second positioning bead (10) is arranged in the assembly groove (301), and a plurality of positioning concave holes (901) are arranged on the upper surface of the slide rail (9) along the length direction of the slide rail (9), and the plurality of positioning concave holes (901) are arranged in sequence, and adjacent positioning concave holes (901) have an intersection, and a transition arc surface (902) lower than the upper surface of the slide rail (9) is formed at the intersection.

7. The embedded frameless anti-glare spotlight according to claim 6, characterized in that: The light entrance hole (501) is opened and extends downward in the sliding tilting direction of the heat sink (3); the heat sink (3) has an aperture (302), and the light source assembly (4) is located above the aperture (302); when the heat sink (3) slides to a maximum tilting angle relative to the lamp holder (2), an angle β is formed between the plane where the aperture (302) is located and the upper end surface of the anti-glare cup (5), and the value of β is 22 to 30 degrees, and at this time, the aperture (302) is completely located on a side extending downward close to the light entrance hole (501) with the center axis of the anti-glare cup (5) as the boundary, and the vertical lines of the plane of the aperture (302) are all located in the light entrance hole (501) and keep a certain distance from the lower edge of the light entrance hole (501).

8. The embedded frameless anti-glare spotlight according to claim 5, characterized in that: The heat sink (3) is provided with a plurality of aluminum heat sinks (303), and airflow ducts (304) are provided between adjacent aluminum heat sinks (303); an air inlet (305) is provided on the side wall of the heat sink (3) so that the aluminum heat sink (303) and the airflow duct (304) are exposed; and a smoothly inclined airflow guiding arc surface (306) is formed below the air inlet (305).

9. The embedded frameless anti-glare spotlight according to claim 5, characterized in that: When viewed from above, the projected area of ​​the heat sink (3) is always located within the enclosed area of ​​the outer frame (101).

10. The embedded frameless anti-glare spotlight according to claim 5, characterized in that: A plurality of reinforcing plates (11) are provided in an annular shape around the periphery of the installation cylinder (103).

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