Snap-fit ​​devices and lighting fixtures

Abstract

This application discloses a snap-fit ​​device and a lighting fixture, relating to the field of lighting equipment technology. The snap-fit ​​device includes a base and multiple snap-fit ​​arms; the multiple snap-fit ​​arms are distributed along the outer circumferential surface of the base and are pivotally engaged with the base, allowing the snap-fit ​​arms to unfold and retract relative to the base. Each snap-fit ​​arm has a first receiving groove for accommodating a snap-fit ​​protrusion, wherein the first receiving groove forms a locking engagement with the snap-fit ​​protrusion to fix the accessory onto the snap-fit ​​arm. The snap-fit ​​device disclosed in this application is simple to assemble and disassemble, does not occupy space, is multifunctional, and has good practicality, greatly improving the user experience.

Description

Technical Field

[0001] This application relates to the field of lighting equipment technology, specifically to a snap-fit ​​device and a lamp. Background Technology

[0002] As a tool for illumination, lamps are becoming increasingly common in people's lives. Typically, lamps have external functional accessories attached to the light-emitting side, such as lampshades, to control the emitted light.

[0003] Currently, the lampshade and lamp body are designed as a single unit, with the lampshade being non-removable and offering poor replaceability. To address this issue, existing technologies have implemented detachable connections between the lampshade and lamp body, such as threaded or snap-fit ​​connections. When using a threaded connection, the lampshade needs to be unscrewed multiple times, making the process time-consuming and laborious. When using a snap-fit ​​connection, an additional snap-fit ​​structure is required between the lamp body and the lampshade. To facilitate carrying and avoid the snap-fit ​​structure taking up space, it must also be removed when disassembling the lampshade, resulting in similarly time-consuming and laborious operations and a poor user experience. Furthermore, each snap-fit ​​structure can only be used with one type of lampshade, offering limited functionality and poor practicality. Summary of the Invention

[0004] The purpose of this application is to provide a snap-fit ​​device and a lamp to overcome the shortcomings of the prior art.

[0005] To achieve the above objectives, in a first aspect, this application provides a snap-fit ​​device for connecting external accessories, wherein the outer peripheral surface of the accessories is provided with a plurality of snap-fit ​​protrusions;

[0006] The snap-fit ​​device includes:

[0007] matrix; and

[0008] Multiple snap-fit ​​arms are distributed along the outer peripheral surface of the base and pivotally engage with the base respectively, so that the snap-fit ​​arms can be unfolded and retracted relative to the base. Each snap-fit ​​arm is provided with a first receiving groove for receiving the snap-fit ​​protrusion, wherein the first receiving groove is used to form a backstop engagement with the snap-fit ​​protrusion to fix the accessory on the snap-fit ​​arm.

[0009] As a further improvement to the above technical solution:

[0010] In conjunction with the first aspect, in one possible implementation, the snap-fit ​​device further includes a locking component, at least one of the snap-fit ​​arms being rotatably disposed of the locking component, the locking component being used to abut against the snap-fit ​​protrusion in the corresponding first receiving slot to prevent the snap-fit ​​protrusion from dislodging from the first receiving slot.

[0011] In conjunction with the first aspect, in one possible implementation, the locking component includes:

[0012] A rotating seat is arranged through the snap-fit ​​arm along the thickness direction of the substrate, and the rotating seat is rotatably engaged with the snap-fit ​​arm; and

[0013] Two pushing members are respectively disposed at both ends of the rotating seat;

[0014] One of the pushers is located on the same side as the opening of the first receiving slot, and the other pusher is located on the side of the latching arm facing away from the first receiving slot. The two pushers are linked by the rotating seat.

[0015] In conjunction with the first aspect, in one possible implementation, along the thickness direction of the substrate, one side of the first receiving slot is provided with an opening for the engaging protrusion to enter. The width of the opening along the length direction of the engaging arm is smaller than the width of the inside of the first receiving slot along the length direction of the engaging arm, so that a limiting protrusion is formed on the side wall of the first receiving slot.

[0016] In conjunction with the first aspect, in one possible implementation, a second receiving slot is provided at the end of the latching arm away from the pivot engagement point;

[0017] When the latching arm is retracted, the second receiving slot is used to receive one end of the adjacent latching arm near the pivot engagement point.

[0018] In conjunction with the first aspect, in one possible implementation, the snap-fit ​​arm includes:

[0019] A limiting part is used to abut against the outer peripheral surface of the base when the snap-fit ​​arm is unfolded;

[0020] The hinged portion pivotally engages with the base body;

[0021] The arm body portion, on which the first receiving slot is provided; and

[0022] The snap-fit ​​part is provided with a second receiving slot, which is used to receive the limiting part on the adjacent snap-fit ​​arm when the snap-fit ​​arm is retracted;

[0023] The limiting part, the hinge part, the arm body part, and the snap-fit ​​part are sequentially connected and form an integral structure.

[0024] In conjunction with the first aspect, in one possible implementation, the second receiving slot has a side opening, and a limiting member is provided at the bottom of the second receiving slot. The limiting member is used to abut against the latching arm received in the second receiving slot to prevent the latching arm received in the second receiving slot from coming out.

[0025] In conjunction with the first aspect, in one possible implementation, the snap-fit ​​arm has an arc-shaped structure, and the inner arc side of the snap-fit ​​arm near the base is adapted to the outer peripheral surface of the base.

[0026] In conjunction with the first aspect, in one possible implementation, the snap-fit ​​arm is further provided with a clearance groove, the clearance groove being located between the first receiving slot and the pivot engagement point, and the width of the clearance groove being adapted to the wall thickness of the accessory;

[0027] When all the snap-fit ​​arms are in the extended or retracted state, all the clearance slots are located on the same virtual circle, and the virtual circle is adapted to the shape of the wall of the accessory.

[0028] In conjunction with the first aspect, in one possible implementation, an elastic reset member is further provided between the snap-fit ​​arm and the base, the elastic reset member being used to drive the snap-fit ​​arm to unfold.

[0029] To achieve the above objectives, in a second aspect, this application also provides a lighting fixture, including a snap-fit ​​device according to the first aspect, wherein the substrate is a lamp body that emits light.

[0030] Compared to existing technologies, the beneficial effects of this application are:

[0031] This application provides a snap-fit ​​device and a lamp fixture. The snap-fit ​​device has multiple snap-fit ​​arms distributed along the outer peripheral surface of a base, and the snap-fit ​​arms are pivotally engaged with the base, allowing them to expand and retract relative to the base. When installing accessories, snap-fit ​​protrusions on the outer peripheral surface of the accessories are placed into corresponding first receiving slots, creating a locking engagement between the snap-fit ​​protrusions and the first receiving slots, thereby fixing the accessories onto the snap-fit ​​arms and completing the installation. Disassembly of the accessories is simple; the snap-fit ​​protrusions are disengaged from the first receiving slots. After disassembly, the snap-fit ​​arms can remain in the retracted state without needing to be disassembled, saving space and greatly improving the user experience.

[0032] Furthermore, since the snap-fit ​​arm can expand and retract relative to the base, the snap-fit ​​device has at least two snap-fit ​​states: one with the snap-fit ​​arm expanded relative to the base, and the other with the snap-fit ​​arm retracted relative to the base. Therefore, these two snap-fit ​​states can be used for snap-fit ​​installation of different models or types of accessories, greatly enhancing the functionality of the snap-fit ​​device, improving its practicality, and further enhancing the user experience.

[0033] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0034] The accompanying drawings are provided to further illustrate this application and form part of the specification. They are used together with the following detailed description to explain this application. It should be understood that the following drawings only show some embodiments of this application and should not be considered as limiting the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort. In the drawings:

[0035] Figure 1 This illustration shows a three-dimensional structural diagram of a lamp with a large lampshade provided in an embodiment of this application;

[0036] Figure 2 It shows Figure 1 A three-dimensional structural diagram of the lamp without the lampshade shown;

[0037] Figure 3 This illustration shows a three-dimensional structural diagram of a lamp with a small lampshade provided in an embodiment of this application;

[0038] Figure 4 It shows Figure 3 An exploded view of the lamp fixture shown without the lampshade installed;

[0039] Figure 5 It shows Figure 4 An exploded view of the snap-fit ​​device in the lamp shown;

[0040] Figure 6 This diagram illustrates the unfolded state of the latching arm in the lamp latching device provided in an embodiment of this application.

[0041] Figure 7 It shows Figure 6 A magnified view of a portion of point A in the middle;

[0042] Figure 8 It shows Figure 2 The front view of the lamp shown;

[0043] Figure 9 It shows Figure 8 A magnified view of a portion of point B in the middle;

[0044] Figure 10 It shows Figure 4 An exploded view of the heat dissipation device in the lamp shown;

[0045] Figure 11 It shows Figure 8A schematic diagram of the luminaire with the snap-fit ​​arm retracted.

[0046] Figure 12 It shows Figure 11 C-axis sectional view;

[0047] Figure 13 It shows Figure 12 A magnified view of a portion of point D.

[0048] Explanation of reference numerals in the attached figures:

[0049] 100. Lampshade; 110. Column section; 120. Gradually expanding section; 130. Snap-fit ​​protrusion;

[0050] 200. Snap-fit ​​device; 210. Base; 211. Lamp holder; 212. Light-emitting component; 2120. Light-emitting element; 2121. Mounting piece; 2122. Light-transmitting sheet; 213. Lug; 220. Snap-fit ​​arm; 220a. Limiting part; 220b. Hinge part; 220c. Arm body part; 220d. Snap-fit ​​part; 220e. Inner arc side surface; 220f. Outer arc side surface; 221. First receiving slot; 222. Opening; 223. Limiting protrusion; 224. Clearance groove; 225. Second receiving slot; 226. Limiting member; 230. Locking assembly; 231. Rotating seat; 232. Pushing member;

[0051] 300, Heat dissipation device; 310, Heat sink base; 311, Air inlet; 312, Air outlet; 320, Heat dissipation medium; 330, First connecting base; 340, Fan assembly;

[0052] 400. Power supply unit; 410. Mounting housing; 411. Battery compartment; 420. Power supply battery; 430. Second connector;

[0053] 500. Lighting adjustment device; 510. Base; 511. Receiving cavity; 520. Adjustment ring; 530. Circuit board; 540. Hall sensor;

[0054] W - Thickness direction. Detailed Implementation

[0055] The specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the embodiments of this application.

[0056] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0057] In the embodiments of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0058] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0059] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0060] The present application will now be described in detail with reference to the accompanying drawings and exemplary embodiments.

[0061] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 This embodiment provides a snap-fit ​​device 200. The snap-fit ​​device 200 is used in a lighting fixture, wherein the snap-fit ​​device 200 is used to connect external accessories, and the accessories are detachably connected to the snap-fit ​​device 200.

[0062] The accessories are used to process the light emitted by the lamps. For example, the accessories can be lampshade 100, reflector umbrella, diffuser umbrella, etc. In this embodiment, the accessory is selected as lampshade 100.

[0063] In this embodiment, the lampshade 100 includes a cylindrical section 110 and a gradually expanding section 120 integrally connected to the cylindrical section 110. The cylindrical section 110 of the lampshade 100 is used for detachable connection with the snap-fit ​​device 200, and the gradually expanding section 120 is horn-shaped to focus the light.

[0064] Furthermore, the cylindrical section 110 of the lampshade 100 is engaged with the snap-fit ​​device 200, and in this embodiment, the outer peripheral surface of the cylindrical section 110 is provided with a plurality of snap-fit ​​protrusions 130.

[0065] Please see Figure 4 , Figure 5 , Figure 6 and Figure 7 The aforementioned snap-fit ​​device 200 includes a base 210 and a plurality of snap-fit ​​arms 220. The plurality of snap-fit ​​arms 220 are distributed along the outer peripheral surface of the base 210 and pivotally engage with the base 210, thereby allowing the snap-fit ​​arms 220 to rotate relative to the base 210 so that the snap-fit ​​arms 220 can be unfolded and retracted relative to the base 210.

[0066] Furthermore, the substrate 210 can be an accessory that is installed separately on the luminaire, or it can be part of the luminaire itself. In this embodiment, the substrate 210 is designed as part of the luminaire itself, wherein the substrate 210 can be the housing of the luminaire or a module within the luminaire.

[0067] Specifically, in this embodiment, the substrate 210 is the lamp body of the lamp that emits light. Here, the side of the lamp that emits light is defined as the light-emitting side, and the side facing away from the light-emitting side is defined as the backlight side.

[0068] The substrate 210 includes a lamp holder 211 and a light-emitting component 212 disposed on the lamp holder 211. The light-emitting component 212 includes a light-emitting element 2120, a mounting plate 2121, and a light-transmitting sheet 2122. The light-emitting element 2120 is mounted on the mounting plate 2121, and the light-transmitting sheet 2122 covers the light-emitting element 2120. The light-emitting element 2120 is provided with LED beads (not shown) for emitting light. Optionally, the LED beads are LED beads.

[0069] Multiple snap-fit ​​arms 220 are distributed along the outer peripheral surface of the lamp holder 211 of the base 210 and pivotally engage with the lamp holder 211 respectively. Thus, the snap-fit ​​arms 220 can be extended and retracted relative to the base 210, thereby having two states: an extended state and a retracted state. In the retracted state, the lamp can be conveniently stored.

[0070] In this embodiment, when all the snap-fit ​​arms 220 are in the extended state, a large lampshade 100 can be installed (see [link]). Figure 1 and Figure 2 When all the snap-fit ​​arms 220 are in the retracted position, a smaller lampshade 100 can be installed (see [link]). Figure 3 and Figure 4 Of course, in some embodiments, different types of other accessories can also be installed when all the snap-fit ​​arms 220 are in the extended or retracted state.

[0071] Figure 4 and Figure 5 In some embodiments, multiple snap-fit ​​arms 220 are evenly distributed around the circumference of the lamp holder 211 so that each snap-fit ​​arm 220 is subjected to uniform force after the lamp cover 100 is installed, while improving aesthetics.

[0072] Furthermore, the outer peripheral surface of the lamp holder 211 is provided with a plurality of lugs 213, wherein the number of lugs 213 corresponds to the number and position of the snap-fit ​​arms 220. Each snap-fit ​​arm 220 is pivotally engaged with the corresponding lug 213 via a pivot axis, so that the snap-fit ​​arm 220 can be unfolded and retracted relative to the lamp holder 211. And the axial direction of the pivot axis is parallel to the thickness direction W of the lamp holder 211.

[0073] Each snap-fit ​​arm 220 is provided with a first receiving slot 221, and the number of snap-fit ​​protrusions 130 on the outer circumferential surface of the cylindrical section 110 is the same as the number of the first receiving slots 221.

[0074] Please refer to the following: Figure 1 When installing a larger lampshade 100, all snap-fit ​​arms 220 can be in the extended state. Then, the snap-fit ​​protrusions 130 on the cylindrical section 110 of the lampshade 100 are aligned with the first receiving slots 221 on each snap-fit ​​arm 220, and the snap-fit ​​protrusions 130 are received in the first receiving slots 221, forming a locking engagement between the first receiving slots 221 and the corresponding snap-fit ​​protrusions 130. When disassembling a larger lampshade 100, first release the engagement between the snap-fit ​​protrusions 130 and the first receiving slots 221, then remove the lampshade 100, and retract all the extended snap-fit ​​arms 220 for easy storage. When installing a smaller lampshade 100, all snap-fit ​​arms 220 are in the retracted state. The installation steps are the same as for installing a larger lampshade 100, and all snap-fit ​​arms 220 remain retracted during disassembly.

[0075] It should be understood that the above-mentioned unfolded state and retracted state are relative. The unfolded state can be fully unfolded or partially unfolded, and can be adjusted according to the size of the lampshade 100 so that the unfolded state of the snap-fit ​​arm 220 is compatible with the lampshade 100.

[0076] The aforementioned anti-reverse fit formed between the first receiving slot 221 and the corresponding snap-fit ​​protrusion 130 can be an interference fit or an embedded snap-fit.

[0077] Therefore, the snap-fit ​​device 200 provided in this embodiment integrates the snap-fit ​​arm 220 of the snap-fit ​​lampshade 100 onto the base 210, enabling quick installation and removal of the lampshade 100 via the snap-fit ​​arm 220. After removing the lampshade 100, the snap-fit ​​arm 220 can be folded up without needing to be removed along with the lampshade, saving space and greatly improving the user experience.

[0078] Furthermore, since the snap-fit ​​arm 220 can be extended and retracted relative to the base 210, the snap-fit ​​device 200 has at least two snap-fit ​​states: one with the snap-fit ​​arm 220 extended relative to the base 210, and the other with the snap-fit ​​arm 220 retracted relative to the base 210. Thus, these two snap-fit ​​states can be used for snap-fit ​​installation of different models or types of accessories, greatly enhancing the functionality of the snap-fit ​​device 200, improving its practicality, and further enhancing the user experience.

[0079] Furthermore, the number of card arms 220 can be two, three, four, five, or other quantities. For example... Figure 6 Only three card connector arms 220 are shown in the illustration. It should be understood that the above description of the number of card connector arms 220 is merely illustrative and is not intended to limit the scope of protection of this application.

[0080] Along the thickness direction W of the substrate 210, the first receiving slot 221 has an opening 222 on the side near the light-emitting side of the substrate 210 for the receiving protrusion 130 to enter. The width of the opening 222 along the length direction of the receiving arm 220 is smaller than the width of the inside of the first receiving slot 221 along the length direction of the receiving arm 220 (wherein, the length direction is as follows). Figure 7 (The left and right directions of the shown viewpoint). Therefore, in this embodiment, a limiting protrusion 223 is formed on the side wall of the first receiving slot 221 near the pivot engagement point. The limiting protrusion 223 is opposite to the bottom of the first receiving slot 221, and the dimension between the limiting protrusion 223 and the bottom of the first receiving slot 221 is adapted to the dimension of the engaging protrusion 130 along its own thickness direction. The opening 222 is formed between the limiting protrusion 223 and the side wall of the first receiving slot 221 away from the pivot engagement point.

[0081] Please see Figure 1 , Figure 2 , Figure 7 , Figure 8 and Figure 9 In this embodiment, the latching device 200 further includes a locking component 230. At least one latching arm 220 may be provided with the locking component 230; that is, some latching arms 220 may be provided with the locking component 230, or all latching arms 220 may be provided with the locking component 230.

[0082] The locking component 230 is used to abut against the snap-fit ​​protrusion 130 that is received in the corresponding first receiving slot 211, thereby preventing the snap-fit ​​protrusion 130 from falling out of the first receiving slot 221, so as to achieve the fixed installation of the entire lampshade 100.

[0083] Specifically, the locking component 230 is partially located within the first receiving slot 221, and closer to the side of the first receiving slot 221 away from the pivot engagement. Since the locking component 230 can rotate relative to the latching arm 220, when the latching protrusion 130 enters the first receiving slot 221, the lampshade 100 is rotated first (in this embodiment, as shown in the image). Figure 1 As described above, rotating the lampshade 100 clockwise causes the engaging protrusion 130 to engage between the limiting protrusion 223 and the first receiving groove 221. Then, rotating the locking assembly 230 causes it to push against the engaging protrusion 130, restricting its movement within the first receiving groove 221 and preventing it from dislodging. This locks the engaging protrusion 130 in the first receiving groove 221, thus securing the lampshade 100 in place. When removing the lampshade 100, first release the locking assembly 230 from the engaging protrusion 130, then rotate the lampshade 100 in the reverse direction (as described in this embodiment). Figure 1 As described above, by rotating the lamp cover 100 counterclockwise, the locking protrusion 130 aligns with the opening 222 of the first receiving slot 221, and the lamp cover 100 can be removed.

[0084] Specifically, the locking assembly 230 includes a rotating base 231 and two abutting members 232. The rotating base 231 extends through the latching arm 220 along the thickness direction W of the base 210, and the rotating base 231 rotatably engages with the latching arm 220. The two abutting members 232 are respectively disposed at both ends of the rotating base 231. One abutting member 232 is located on the same side as the opening 222 of the first receiving slot 221, and the other abutting member 232 is located on the side of the latching arm 220 facing away from the first receiving slot 221. The two abutting members 232 are linked together through the rotating base 231.

[0085] Therefore, by moving the pusher 232 on the side facing away from the first receiving slot 221, the rotating seat 231 can drive the pusher 232 located in the first receiving slot 221 to rotate, so that the pusher 232 located in the first receiving slot 221 abuts or disengages from the engaging protrusion 130. When the pusher 232 located in the first receiving slot 221 abuts with the engaging protrusion 130, the engaging protrusion 130 is locked in the corresponding first receiving slot 221; when the pusher 232 located in the first receiving slot 221 disengages from the engaging protrusion 130, the engaging protrusion 130 can move in the corresponding first receiving slot 221.

[0086] Please see Figure 1 , Figure 6 and Figure 7 Furthermore, the latching arm 220 is also provided with a relief groove 224, which is located between the first receiving latching groove 221 and the pivot shaft. The width of the relief groove 224 is adapted to the wall thickness of the column section 110 of the lampshade 100.

[0087] When all the snap-fit ​​arms 220 are in the extended or retracted state, all the clearance slots 224 are located on the same virtual circle, and the virtual circle is adapted to the shape of the wall of the cylindrical section 110 of the lampshade 100. Thus, when the lampshade 100 is installed, the cylindrical section 110 can be at least partially accommodated in the clearance slots 224. This can improve the overall structure of the lamp after the lampshade 100 is installed, making it more compact, and also improve the stability of the lampshade 100 after installation.

[0088] Furthermore, in this embodiment, the outer peripheral surface of the lamp holder 211 is cylindrical. The snap-fit ​​arm 220 has an arc-shaped structure, and the snap-fit ​​arm 220 includes an inner arc-shaped side surface 220e and an opposing outer arc-shaped side surface 220f along the radial direction of the lamp holder 211. The inner arc-shaped side surface 220e of the snap-fit ​​arm 220 near the base 210 is adapted to the outer peripheral surface of the lamp holder 211. Therefore, the inner arc-shaped side surface 220e of the snap-fit ​​arm 220 in the folded state can fit against the outer peripheral surface of the lamp holder 211, further reducing the space occupied by the snap-fit ​​arm 220 in the folded state.

[0089] Please see Figure 1 , Figure 5 , Figure 6 and Figure 7 In this embodiment, to prevent the retracted latching arm 220 from freely unfolding or accidentally unfolding, a second receiving slot 225 is provided at the end of the latching arm 220 away from the pivot engagement. When the latching arm 220 is retracted, the second receiving slot 225 is used to receive the end of the adjacent latching arm 220 closest to the pivot engagement. That is, the retracted latching arms 220 are connected end-to-end, forming a closed loop around the outer periphery of the lamp holder 211.

[0090] Specifically, the latching arm 220 includes a limiting part 220a, a hinge part 220b, an arm body part 220c, and a latching part 220d connected in sequence. The hinge part 220b pivotally engages with a corresponding lug 213 on the lamp holder 211 via a pivot shaft. The limiting part 220a is located at one end of the hinge part 220b and abuts against the outer peripheral surface of the lamp holder 211 when the latching arm 220 is extended, thus limiting the maximum extension range of the latching arm 220. The arm body part 220c is located at the other end of the hinge part 220b and is provided with the aforementioned clearance groove 224 and the first receiving slot 221. The latching part 220d is provided with a second receiving slot 225, which is used to receive the limiting part 220a on an adjacent latching arm 220 when the latching arm 220 is retracted.

[0091] Optionally, the limiting part 220a, the hinge part 220b, the arm body part 220c and the snap-fit ​​part 220d are connected in sequence and form an integral structure.

[0092] Furthermore, the second receiving slot 225 is interference-fitted with the limiting part 220a on the adjacent card arm 220 to prevent the card arm 220 from unfolding freely after being folded up or from unfolding after being accidentally touched.

[0093] In some embodiments, the second receiving slot 225 has a side opening, and a limiting member 226 is provided at the bottom of the second receiving slot 225. The limiting member 226 is used to abut against the limiting portion 220a of the second receiving slot 225 so that the second receiving slot 225 and the limiting portion 220a on the adjacent card arm 220 form an interference fit.

[0094] In other embodiments, a first magnetic chuck (not shown) is provided on the side wall of the second receiving slot 225, and a second magnetic chuck (not shown) is provided on the limiting portion 220a on the adjacent card arm 220. The first magnetic chuck and the second magnetic chuck are magnetically engaged. After the limiting portion 220a is received in the second receiving slot 225, the first magnetic chuck and the second magnetic chuck are attracted to each other, thereby restricting the card arm 220 from freely unfolding or unfolding after accidental contact.

[0095] Optionally, the first magnetic attractor is a magnet, and the second magnetic attractor is a metal that can be attracted by a magnet; or the second magnetic attractor is a magnet, and the first magnetic attractor is a metal that can be attracted by a magnet; or both the first and second magnetic attractors are magnets, and the polarities of the first and second magnetic attractors are opposite, that is, the N pole and the S pole, respectively.

[0096] In some embodiments, an elastic reset member (not shown) is also provided between the latching arm 220 and the lamp holder 211. The elastic reset member is used to drive the latching arm 220 to unfold. When the latching arm 220 is in the retracted state, the elastic reset member is in the compressed state. Since the second receiving slot 225 of each latching arm 220 is interference-fitted with the limiting portion 220a on the adjacent latching arm 220, the force exerted by the elastic reset member on the latching arm 220 is less than the force (friction or magnetic force) between the second receiving slot 225 and the limiting portion 220a. Therefore, the elastic reset member cannot drive the retracted latching arm 220 to unfold. When the second receiving slot 225 of the snap-fit ​​arm 220 is disengaged from the limiting part 220a on the adjacent snap-fit ​​arm 220 under the action of external force, the snap-fit ​​arm 220 is quickly extended under the drive of the elastic reset member. Each snap-fit ​​arm 220 can be directly extended to its maximum extent under the synergistic action of the elastic reset member and the limiting part 220a, so as to directly install the lamp cover 100, which is more convenient and faster.

[0097] Optionally, the elastic reset element is a torsion spring or a spring sheet.

[0098] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4This embodiment also provides a lamp, which further includes a heat dissipation device 300, a power supply device 400, a light adjustment device 500, and the aforementioned snap-fit ​​device 200. The snap-fit ​​device 200 is the lamp body that emits light, and the heat dissipation device 300, power supply device 400, and light adjustment device 500 are respectively disposed on the backlight side of the snap-fit ​​device 200 and arranged sequentially along a straight line.

[0099] Please see Figure 4 and Figure 10 The aforementioned heat dissipation device 300 includes a heat sink 310, a heat dissipation medium 320, a first connecting seat 330, and a fan assembly 340. The heat sink 310 has a hollow structure and is connected to the lamp holder 211. The heat sink 310 is provided with an air inlet 311 and an air outlet 312, allowing air to enter and exit the heat sink 310 for heat dissipation.

[0100] The heat dissipation medium 320, fan assembly 340, and first connecting seat 330 are arranged sequentially along the axial direction of the heat sink 310. The heat dissipation medium 320 is disposed within the heat sink 310 and abuts against the light-emitting component 212 in the light-emitting device, facilitating heat exchange between the heat dissipation medium 320 and the light-emitting device, while simultaneously fixing the light-emitting component 212 to the lamp holder 211. The first connecting seat 330 is disposed on the side of the heat sink 310 away from the heat dissipation medium 320 and is used for detachably connecting the battery module. The fan assembly 340 is disposed within the first connecting seat 330 and located between the heat dissipation medium 320 and the first connecting seat 330. The fan assembly 340 creates an airflow within the heat sink 310 from the air inlet 311 to the air outlet 312, thereby carrying away heat from the heat dissipation medium 320 and achieving heat dissipation.

[0101] Please refer to Figure 4 , Figure 10 , Figure 11 and Figure 12 The aforementioned power supply device 400 includes a mounting housing 410, a power supply battery 420, and a second connecting base 430. The mounting housing 410 is a long cylindrical structure, and one end of the mounting housing 410 is detachably connected to the heat dissipation device 300. Specifically, the mounting housing 410 is fitted onto and detachably connected to the first connecting base 330. The detachable connection can be achieved through snap-fit ​​or threaded connection.

[0102] Furthermore, a battery compartment 411 is provided inside the mounting housing 410. A power supply battery 420 is disposed in the battery compartment 411 of the mounting housing 410, and the power supply battery 420 can provide power to the light-emitting device, the heat dissipation device 300, and the light adjustment device 500.

[0103] The second connector 430 is located at the end of the mounting housing 410 away from the heat dissipation device 300, and the second connector 430 is connected to the mounting housing 410 by screws. The second connector 430 is also used for detachable connection with the lighting adjustment device 500.

[0104] Please refer to the following: Figure 13 The aforementioned light adjustment device 500 includes a base 510, an adjustment ring 520, and a circuit board 530. The base 510 is detachably connected to the second connecting seat 430, for example, by snap-fit ​​or threaded connection. The base 510 has an internal receiving cavity 511, and two Hall sensors 540 are also provided within the base 510, arranged radially offset along the receiving cavity 511. In this embodiment, the two Hall sensors 540 are respectively close to the inner wall surface of the base 510.

[0105] An adjusting ring 520 is fitted onto the outer circumferential surface of the base 510, and the adjusting ring 520 is rotatably fitted onto the base 510, thus allowing the adjusting ring 520 to rotate freely on the base 510. A predetermined number of first magnets are distributed circumferentially on the inner wall of the adjusting ring 520. These first magnets are used to sense and engage with the Hall sensors 540. Therefore, rotating the adjusting ring 520 changes the magnetic flux passing through the two Hall sensors 540. Because the two Hall sensors 540 are staggered, i.e., asymmetrically arranged, rotating the adjusting ring 520 results in different changes in the magnetic flux through the two Hall sensors 540.

[0106] A circuit board 530 is disposed on the base 510 and located in the receiving cavity 511. A control unit (not shown) is integrated on the circuit board 530. The control unit is electrically connected to two Hall sensors 540 respectively, and is also electrically connected to the light-emitting component 212. In this embodiment, the control unit is configured to acquire information on the change in magnetic flux in the two Hall sensors 540, and adjust the brightness of the light emitted by the lamp according to the information on the change in magnetic flux.

[0107] The optional embodiments of the present application have been described in detail above with reference to the accompanying drawings. However, the embodiments of the present application are not limited to the specific details in the above embodiments. Within the scope of the technical concept of the embodiments of the present application, various simple modifications can be made to the technical solutions of the embodiments of the present application, and these simple modifications all fall within the protection scope of the embodiments of the present application.

[0108] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, the embodiments of this application will not describe the various possible combinations separately.

[0109] Furthermore, various different implementation methods of the embodiments of this application can be combined arbitrarily, as long as they do not violate the spirit of the embodiments of this application, they should also be regarded as the content disclosed in the embodiments of this application.

Claims

1. A snap-fit ​​device, characterized in that, The snap-fit ​​device (200) is used for connecting external accessories, and the outer peripheral surface of the accessories is provided with a plurality of snap-fit ​​protrusions (130). The snap-fit ​​device (200) includes: matrix (210); and Multiple snap-fit ​​arms (220) are distributed along the outer peripheral surface of the base (210) and pivotally engage with the base (210) respectively, so that the snap-fit ​​arms (220) can be unfolded and retracted relative to the base (210). Each snap-fit ​​arm (220) is provided with a first receiving groove (221) for receiving the snap-fit ​​protrusion (130), wherein the first receiving groove (221) is used to form a locking engagement with the snap-fit ​​protrusion (130) to fix the accessory on the snap-fit ​​arm (220). The snap-fit ​​arm (220) is also provided with a relief groove (224), which is located between the first receiving slot (221) and the pivot engagement point. The width of the relief groove (224) is adapted to the wall thickness of the accessory. When all the snap-fit ​​arms (220) are in the unfolded or retracted state, all the clearance slots (224) are located on the same virtual circle, which is adapted to the shape of the wall of the accessory.

2. The snap-fit ​​device according to claim 1, characterized in that, The snap-fit ​​device (200) further includes a locking component (230), on which at least one snap-fit ​​arm (220) is rotatably disposed the locking component (230), the locking component (230) being used to abut against the snap-fit ​​protrusion (130) in the corresponding first receiving slot (221) to prevent the snap-fit ​​protrusion (130) from dislodging from the first receiving slot (221).

3. The snap-fit ​​device according to claim 2, characterized in that, The locking assembly (230) includes: A rotating seat (231) is arranged through the snap-fit ​​arm (220) along the thickness direction of the base (210), and the rotating seat (231) is rotatably engaged with the snap-fit ​​arm (220); and Two pushers (232) are respectively disposed at both ends of the rotating seat (231); One of the pushers (232) is located on the same side as the opening (222) of the first receiving slot (221), and the other pusher (232) is located on the side of the latching arm (220) facing away from the first receiving slot (221). The two pushers (232) are linked together by the rotating seat (231).

4. The snap-fit ​​device according to claim 1, characterized in that, Along the thickness direction of the substrate (210), one side of the first receiving slot (221) is provided with an opening (222) for the receiving protrusion (130) to enter. The width of the opening (222) along the length direction of the receiving arm (220) is smaller than the width of the inside of the first receiving slot (221) along the length direction of the receiving arm (220), so that a limiting protrusion (223) is formed on the side wall of the first receiving slot (221).

5. The snap-fit ​​device according to claim 1, characterized in that, The end of the snap-fit ​​arm (220) away from the pivot engagement is provided with a second receiving slot (225); When the snap-fit ​​arm (220) is retracted, the second receiving slot (225) is used to receive one end of the adjacent snap-fit ​​arm (220) near the pivot engagement.

6. The snap-fit ​​device according to claim 1, characterized in that, The snap-fit ​​arm (220) includes: The limiting part (220a) is used to abut against the outer peripheral surface of the base (210) when the snap-fit ​​arm (220) is unfolded; The hinge (220b) pivotally engages with the base (210); Arm body portion (220c), wherein the arm body portion (220c) is provided with the first receiving slot (221); and The snap-fit ​​portion (220d) is provided with a second receiving slot (225), which is used to receive the limiting portion (220a) on the adjacent snap-fit ​​arm (220) when the snap-fit ​​arm (220) is retracted. The limiting part (220a), the hinge part (220b), the arm body part (220c), and the snap-fit ​​part (220d) are connected in sequence and form an integral structure.

7. The snap-fit ​​device according to claim 5 or 6, characterized in that, The second receiving slot (225) has a side opening, and a limiting member (226) is provided at the bottom of the second receiving slot (225). The limiting member (226) is used to abut against the receiving arm (220) in the second receiving slot (225) to prevent the receiving arm (220) in the second receiving slot (225) from falling out.

8. The snap-fit ​​device according to claim 1, characterized in that, The snap-fit ​​arm (220) has an arc-shaped structure, and the inner arc side (220e) of the snap-fit ​​arm (220) near the base (210) is adapted to the outer peripheral surface of the base (210).

9. The snap-fit ​​device according to claim 1, characterized in that, An elastic reset member is also provided between the snap-fit ​​arm (220) and the base (210), and the elastic reset member is used to drive the snap-fit ​​arm (220) to unfold.

10. A lamp, characterized in that, Includes the snap-fit ​​device (200) according to any one of claims 1-9, wherein the base (210) is a lamp body that emits light.

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