WO2024051754A1

WO2024051754A1 - Clamping device, and lamp

Info

Publication number: WO2024051754A1
Application number: PCT/CN2023/117320
Authority: WO
Inventors: 伍传基
Original assignee: 深圳市影之器科技有限公司
Priority date: 2022-09-08
Filing date: 2023-09-06
Publication date: 2024-03-14
Also published as: CN218494913U

Abstract

The present application relates to the technical field of lighting apparatuses. Disclosed are a clamping device and a lamp. The clamping device comprises a base body and a plurality of clamping arms, wherein the plurality of clamping arms are distributed along a peripheral surface of the base body and respectively match the base body in a pivoting manner, such that the clamping arms can be unfolded and folded relative to the base body; and each clamping arm is provided with a first accommodating clamping groove for accommodating a clamping lug, the first accommodating clamping groove being used for creating a retaining fit with the clamping lug, so as to fix an accessory onto the clamping arm. The clamping device disclosed in the present application is easy to disassemble and assemble, does not occupy much space, and has multiple functions and good practicability, thereby greatly improving the use experience of a user.

Description

Clamping devices and lighting fixtures

This application claims priority to the Chinese patent application filed with the China Patent Office on September 8, 2022, with the application number 202222399156.4 and the invention name "Clamping Device and Lamp", the entire content of which is incorporated into the application by reference.

Technical field

The present application relates to the technical field of lighting equipment, and specifically to a clamping device and a lamp.

Background technique

As a lighting tool, lamps are increasingly used in people's lives. Commonly used lamps have external functional accessories on the light-emitting side, such as installing a lampshade to process the light emitted by the lamp.

At present, the lampshade and the lamp body are configured as an integrated structure. The lampshade is not removable and has poor replaceability. In order to solve the problem of poor replaceability, in the prior art, the lampshade and the lamp body are detachably connected, for example, the lampshade and the lamp body are threaded or snap-fitted. When the threaded connection is used, the lampshade needs to be screwed multiple times when disassembling and assembling the lampshade, which is time-consuming and laborious; when the snap-on connection is used, another one for snapping the lampshade needs to be installed between the lamp body and the lampshade. When disassembling the lampshade, the snap-in structure needs to be disassembled together to facilitate portability and prevent the snap-in structure from occupying space. Therefore, the disassembly and assembly operations are also time-consuming and laborious, resulting in poor user experience. In addition, one snap-in structure can only be adapted to one type of lampshade, which has a single function and poor practicality.

Technical solutions

The purpose of this application is to provide a clamping device and a lamp to solve the deficiencies in the prior art.

In order to achieve the above purpose, in the first aspect, the present application provides a clamping device, the clamping device is used for external accessories, and the outer peripheral surface of the accessory is provided with a plurality of clamping bumps;

The clamping device includes:

matrix; and

A plurality of snap-in arms are distributed along the outer circumferential surface of the base body and are respectively pivotally matched with the base body so that the snap-in arms can expand and contract relative to the base body. Each snap-in arm has a A first accommodation slot is provided for accommodating the clamping protrusion, wherein the first accommodation slot is used to form a backstop fit with the clamping protrusion to fix the accessory on the Snap on the arm.

As a further improvement of the above technical solution:

In conjunction with the first aspect, in a possible implementation, the locking device further includes a locking component, the locking component is rotatably provided on at least one of the snapping arms, and the locking component is used to interact with the first aspect. The corresponding latching protrusions in the first accommodation slots abut against each other to prevent the latching protrusions from coming out of the first accommodation slots.

In conjunction with the first aspect, in a possible implementation, the locking component includes:

A rotating base is arranged through the clamping arm along the thickness direction of the base body, and the rotating base is rotationally matched with the clamping arm; and

Two push pieces are respectively provided at both ends of the rotating base;

Among them, one of the push pieces is located on the same side as the opening of the first accommodation slot, and the other push piece is located on the side of the latch arm facing away from the first accommodation slot. , the two pushing members are linked through the rotating base.

In conjunction with the first aspect, in a possible implementation, along the thickness direction of the base body, an opening is provided on one side of the first accommodation slot for the locking bump to enter, and the opening The width of the first accommodation slot along the length direction of the clamping arm is smaller than the width of the first accommodation slot along the length direction of the clamping arm, so that a limiting protrusion is formed on the side wall of the first accommodation slot. rise.

In conjunction with the first aspect, in a possible implementation, an end of the snap-in arm away from the pivot fitting is provided with a second accommodation slot;

Wherein, when the clamping arms are retracted, the second receiving slot is used to receive one end of the adjacent clamping arms close to the pivot fitting point.

In conjunction with the first aspect, in a possible implementation, the latch arm includes:

The limiting portion is used to abut the outer peripheral surface of the base body when the clamping arm is unfolded;

The hinge part is pivotally matched with the base body;

An arm body portion, the arm body portion is provided with the first accommodation slot; and

The clamping portion is provided with a second accommodation slot, and the second accommodation slot is used to accommodate the adjacent clamping arm when the clamping arm is retracted. Limiting part;

Wherein, the limiting part, the hinge part, the arm body part and the clamping part are connected in sequence and form an integrated structure.

In conjunction with the first aspect, in a possible implementation, the second accommodation slot is a side opening, and a limiter is provided at the bottom of the second accommodation slot, and the limiter is used to resist the receiving The latch arm accommodated in the second accommodating slot prevents the latch arm accommodated in the second accommodating slot from coming out.

In conjunction with the first aspect, in a possible implementation, the snap-in arm has an arc-shaped structure, and the inner arc side surface of the snap-in arm close to the base body matches the outer peripheral surface of the base body.

In conjunction with the first aspect, in a possible implementation, the latch arm is further provided with an escape groove, and the escape groove is between the first accommodation slot and the pivot fitting point, The width of the escape groove is adapted to the wall thickness of the accessory;

Wherein, when all the latch arms are in the unfolded state or the stowed state, all the escape grooves are located on the same virtual circle, and the virtual circle is adapted to the shape of the wall of the accessory.

In connection with the first aspect, in a possible implementation, an elastic return member is further provided between the clamping arm and the base body, and the elastic return member is used to drive the clamping arm to expand.

In order to achieve the above object, in a second aspect, the present application also provides a lamp, including the clamping device provided according to the above first aspect, wherein the base body is a lamp body that emits light.

Compared with the existing technology, the beneficial effects of this application are:

The present application provides a clamping device and a lamp, wherein the clamping device distributes a plurality of clamping arms along the outer circumferential surface of the base body, and pivots the clamping arms with the base body so that the clamping arms can be deployed relative to the base body and folded up, when installing the accessory, place the snap-in bumps on the outer peripheral surface of the accessory into the corresponding first accommodation slots, so that the clamp-on bumps and the first accommodation slots form a back-stop fit, thereby The accessories are fixed on the clamping arms to complete the installation. When disassembling the accessory, just disengage the locking bump from the first accommodation slot, making disassembly and assembly simple. After disassembling the accessory, the clamping arm can be kept in a folded state without disassembly, taking up no space, and greatly improving the user experience.

In addition, since the clamping arm can expand and retract relative to the base body, the clamping device has at least two clamping states, one is a state in which the clamping arm is expanded relative to the base body, and the other is a state in which the clamping arm is retracted relative to the base body. state. As a result, the two clamping states can be used for the clamping installation of different types of accessories or different types of accessories, thereby greatly improving the function of the clamping device, making it more practical and further improving the user experience.

Other features and advantages of the present application will be described in detail in the following detailed description.

Description of the drawings

The drawings are used to provide an understanding of the present application and constitute a part of the specification. They are used to explain the present application together with the following specific embodiments, but do not constitute a limitation of the present application. In the attached picture:

Figure 1 shows a schematic three-dimensional structural diagram of a lamp equipped with a large-size lampshade provided by an embodiment of the present application;

Figure 2 shows a schematic three-dimensional structural view of the lamp shown in Figure 1 without a lampshade installed;

Figure 3 shows a schematic three-dimensional structural diagram of a lamp equipped with a small-sized lampshade provided by an embodiment of the present application;

Figure 4 shows an exploded schematic view of the lamp shown in Figure 3 without a lampshade installed;

Figure 5 shows an exploded schematic view of the clamping device in the lamp shown in Figure 4;

Figure 6 shows a schematic diagram of the unfolded state of the clamping arms in the lamp clamping device provided by the embodiment of the present application;

Figure 7 shows a partial enlarged schematic diagram of position A in Figure 6;

Figure 8 shows a front view of the lamp shown in Figure 2;

Figure 9 shows a partially enlarged schematic view of B in Figure 8;

Figure 10 shows an exploded schematic view of the heat dissipation device in the lamp shown in Figure 4;

Figure 11 shows a schematic diagram of the clamping arm in the lamp shown in Figure 8 in a retracted state;

Figure 12 shows the C-C cross-sectional view in Figure 11;

FIG. 13 shows a partially enlarged schematic diagram of D in FIG. 12 .

Explanation of reference symbols:

100. Lampshade; 110. Column section; 120. Gradually expanding section; 130. Snapping bump; 200. Snapping device; 210. Base body; 211. Lamp holder; 212. Light-emitting component; 2120. Light-emitting element; 2121. Installation piece; 2122, light-transmitting piece; 213, lug; 220, snap-in arm; 220a, limiting portion; 220b, hinge portion; 220c, arm body; 220d, snap-in portion; 220e, inner arc side; 220f , outer arc side; 221, first accommodation slot; 222, opening; 223, limit protrusion; 224, avoidance groove; 225, second accommodation slot; 226, limiter; 230, lock Component; 231, rotating base; 232, push parts; 300, heat dissipation device; 310, heat sink; 311, air inlet; 312, air outlet; 320, heat dissipation medium; 330, first connection base; 340, fan assembly; 400, power supply device; 410, installation shell; 411. Battery compartment; 420. Power supply battery; 430. Second connection base; 500. Light adjustment device; 510. Base; 511. Accommodation cavity; 520. Adjustment ring; 530. Circuit board; 540. Hall sensor; W - Thickness direction.

Detailed ways

The specific implementation manners of the embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific implementations described here are only used to illustrate and explain the embodiments of the present application, and are not used to limit the embodiments of the present application.

It should be noted that, as long as there is no conflict, the embodiments and features in the embodiments of this application can be combined with each other.

In the embodiments of this application, it needs to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back" ", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inside", "Outside", "Clockwise", "Counterclockwise", "Axis", The orientation or positional relationship indicated by "radial direction", "circumferential direction", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply the device or element to which it refers. Must have a specific orientation, be constructed and operate in a specific orientation and therefore should not be construed as a limitation on this application.

In addition, the terms “first” and “second” are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of this application, "plurality" means two or more than two, unless otherwise explicitly and specifically limited.

In this application, unless otherwise clearly stated and limited, the terms "installation", "connection", "connection", "fixing" and other terms should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. , or integrated; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements or an interaction between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

The present application will be described in detail below in conjunction with exemplary embodiments with reference to the accompanying drawings.

Please refer to Figure 1, Figure 2, Figure 3 and Figure 4. This embodiment provides a clamping device 200. The clamping device 200 is used in lamps, where the clamping device 200 is used to connect external accessories, and the accessories and the clamping device 200 are detachably connected.

Among them, the accessories are used to process the light emitted by the lamp. For example, the accessories can be a lampshade 100, a reflective umbrella, a soft light umbrella, etc. In this embodiment, the accessory is selected as the lampshade 100 .

In this embodiment, the lampshade 100 includes a cylinder section 110 and a gradually expanding section 120 that is integrally connected with the cylinder section 110. The cylinder section 110 of the lampshade 100 is used for detachable connection with the clamping device 200, and the gradually expanding section 120 It is in the shape of a trumpet and is used to gather light.

Furthermore, the cylinder section 110 of the lampshade 100 is engaged with the snap-fitting device 200, and in this embodiment, a plurality of snap-in bumps 130 are provided on the outer peripheral surface of the cylinder section 110.

Please refer to FIG. 4 , FIG. 5 , FIG. 6 and FIG. 7 . The above-mentioned clamping device 200 includes a base 210 and a plurality of clamping arms 220 . The plurality of clamping arms 220 are distributed along the outer circumferential surface of the base body 210 and pivotally cooperate with the base body 210 . Therefore, the clamping arms 220 can rotate relative to the base body 210 so that the clamping arms 220 can expand and contract relative to the base body 210 .

Further, the base 210 may be an assembly separately installed on the lamp, or may be a part of the lamp itself. In this embodiment, the base body 210 is designed as a part of the lamp itself, where the base body 210 may be the housing of the lamp or a certain module in the lamp.

Specifically, in this embodiment, the base body 210 is a lamp body for emitting light from the lamp. Here we define the side of the lamp that emits light as the light-emitting side, and the side facing away from the light-emitting side as the backlight side.

The base 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 sheet 2121 and a light-transmitting sheet 2122. The light-emitting element 2120 is installed on the mounting piece 2121. The light-transmitting sheet 2122 covers the light-emitting element 2120. The light-emitting element 2120 is provided with lamp beads (not shown) for emitting light. Optionally, the lamp beads are LED lamp beads.

The plurality of clamping arms 220 are distributed along the outer circumferential surface of the lamp holder 211 of the base body 210 and are pivotally matched with the lamp holder 211 respectively. Therefore, the clamping arms 220 can expand and contract relative to the base body 210. Thus, the clamping arms 220 have Two states, one of which is the expanded state and the other is the collapsed state. Among them, when folded, the lamp can be conveniently stored.

In this embodiment, when all the clamping arms 220 are in the unfolded state, a large-sized lampshade 100 can be installed (please refer to FIGS. 1 and 2 ); when all the clamping arms 220 are in the collapsed state, the large-sized lampshade 100 can be installed. to install a smaller lampshade 100 (see Figures 3 and 4). Of course, in some embodiments, when all the latch arms 220 are in the unfolded state or the folded state, different types of other accessories can also be installed.

4 and 5 , in some embodiments, multiple snap-in arms 220 are evenly distributed along the circumference of the lamp holder 211 , so that after the lampshade 100 is installed, each snap-in arm 220 receives a uniform force and improves the appearance.

Furthermore, the outer peripheral surface of the lamp holder 211 is provided with a plurality of lugs 213 , where the number of lugs 213 corresponds to the number and position of the clamping arms 220 . Each latch arm 220 is pivotally engaged with the corresponding lug 213 through a pivot axis, so that the latch arm 220 can expand and contract relative to the lamp holder 211 . And the axis direction of the pivot shaft is parallel to the thickness direction W of the lamp holder 211 .

Each clamping arm 220 is provided with a first accommodation slot 221 , and the number of clamping protrusions 130 on the outer circumferential surface of the cylinder section 110 is consistent with the number of the first accommodation slots 221 .

Please refer to Figure 1 together. When installing a larger lampshade 100, all the snap-in arms 220 can be in an unfolded state, and then the snap-in bumps 130 on the column section 110 of the lampshade 100 can be connected with each snap-in arm. The first accommodation slot 221 on the arm 220 corresponds to the first accommodation slot 221, and the clamping protrusion 130 is received in the first accommodation slot 221, so that the first accommodation slot 221 and the corresponding clamping protrusion 130 form a stop. Cooperate. When disassembling a larger lampshade 100, first release the engagement between the latch bump 130 and the first receiving slot 221, then remove the lampshade 100, and retract all the unfolded latch arms 220 for easy storage. When installing a lampshade 100 with a smaller size, all the snap-in arms 220 are in a retracted state. The installation steps are the same as those for installing a lampshade 100 with a larger size. When disassembling, all the snap-in arms 220 are kept in a retracted state.

It should be understood that the above-mentioned unfolded state and folded state are relative terms, and the unfolded state has multiple situations of fully unfolded and incompletely unfolded. Specifically, it can be adjusted according to the size of the lampshade 100 so that the clamping arm 220 can be unfolded. The status is adapted to the lampshade 100 .

As mentioned above, the backstop fit formed by the first receiving slot 221 and the corresponding locking protrusion 130 may be an interference fit or an embedded locking fit.

Therefore, the clamping device 200 provided in this embodiment integrates the clamping arm 220 of the lampshade 100 on the base 210, and the lampshade 100 can be quickly installed and removed through the clamping arm 220. After the lampshade 100 is disassembled, the snap-in arm 220 can be folded. There is no need to disassemble the snap-in arm 220 at the same time, which does not occupy space and greatly improves the user experience.

In addition, since the clamping arm 220 can expand and retract relative to the base 210, the clamping device 200 has at least two clamping states, one is a state in which the clamping arm 220 is expanded relative to the base 210, and the other is a state in which the clamping arm 220 is deployed relative to the base 210. The arm 220 is in a folded state relative to the base 210 . Therefore, the two snap-on states can be used for snap-on installation of different models of accessories or different types of accessories, thereby greatly improving the function of the snap-on device 200, making it more practical, and further improving the user experience.

Further, the number of the clamping arms 220 may be two, three, four, five or other numbers. As shown in FIG. 6 , only three clamping arms 220 are shown. It should be understood that the above description of the number of clamping arms 220 is only an example and is not intended to limit the scope of the present application.

Along the thickness direction W of the base 210 , the first receiving slot 221 is provided with an opening 222 on a surface close to the light-emitting side of the base 210 for the engaging bump 130 to enter. The width of the opening 222 along the length direction of the engaging arm 220 is less than The width of the inside of the first accommodation slot 221 along the length direction of the clamping arm 220 (where the length direction is the left-right direction of the viewing angle as shown in FIG. 7 ). Therefore, in this embodiment, a limiting protrusion 223 is formed on the side wall of the first receiving slot 221 close to the pivot fitting point, and the limiting protrusion 223 is opposite to the bottom of the first receiving slot 221. And the size between the limiting protrusion 223 and the bottom of the first receiving slot 221 is adapted to the size of the locking protrusion 130 along its 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 fitting point.

Please refer to FIGS. 1 , 2 , 7 , 8 and 9 . In this embodiment, the clamping device 200 further includes a locking component 230 . Among them, at least one snap-in arm 220 is provided with a locking component 230 , that is to say, some of the snap-in arms 220 may be provided with a locking component 230 , or all of the snap-in arms 220 may be provided with a locking component 230 .

Among them, the locking component 230 is used to resist the latching protrusion 130 received in the corresponding first accommodation slot 211, thereby preventing the latching protrusion 130 from coming out of the first accommodation slot 221, so as to realize the entire lampshade 100. fixed installation.

Specifically, the locking component 230 is partially located in the first receiving slot 221 and is close to the side of the first receiving slot 221 away from the pivot fit. 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 first rotated (in this embodiment, as shown in FIG. 1, rotate clockwise Lampshade 100), so that the locking protrusion 130 is stuck between the limiting protrusion 223 and the first receiving slot 221, and then the locking component 230 is rotated, so that the locking component 230 pushes against the snapping protrusion 130 to limit the locking. The movement of the connecting bump 130 in the first receiving slot 221 prevents the engaging bump 130 from protruding from the first receiving slot 221, and locks the engaging bump 130 in the first receiving slot 221. It is accommodated in the card slot 221 to realize the installation and fixation of the lampshade 100 . When removing the lampshade 100, first release the contact between the locking assembly 230 and the snap-on bump 130, and then rotate the lampshade 100 in the reverse direction (in this embodiment, as shown in FIG. 1, rotate the lampshade 100 counterclockwise) to make the snap-on The protrusion 130 corresponds to the opening 222 of the first receiving slot 221, and the lampshade 100 can be detached.

Specifically, the locking assembly 230 includes a rotating base 231 and two pushing members 232 . The rotating base 231 is arranged through the clamping arm 220 along the thickness direction W of the base body 210 , and the rotating base 231 rotates with the clamping arm 220 . Two pushing members 232 are respectively provided at both ends of the rotating base 231 . Among them, one pushing member 232 is located on the same side as the opening 222 of the first receiving slot 221, and the other pushing member 232 is located on the side of the engaging arm 220 facing away from the first receiving slot 221. The push piece 232 is linked through the rotating base 231.

Therefore, by turning the pushing member 232 on the side facing away from the first receiving slot 221, the rotating base 231 can drive the pushing member 232 located in the first receiving slot 221 to rotate, so that the pushing member 232 located in the first receiving slot 221 can be rotated. The pushing member 232 in the first receiving slot 221 abuts or releases the abutting protrusion 130 . When the pushing member 232 located in the first receiving slot 221 abuts against the locking protrusion 130, the locking protrusion 130 is locked in the corresponding first receiving slot 221; When the pushing member 232 in the card slot 221 is released from contact with the clamping protrusion 130, the clamping protrusion 130 can move in the corresponding first clamping slot 221.

Please refer to Figure 1, Figure 6 and Figure 7. Furthermore, the latch arm 220 is also provided with an escape groove 224. The escape groove 224 is between the first accommodation slot 221 and the pivot axis. The width of the escape groove 224 is equal to The wall thickness of the column section 110 of the lampshade 100 is adapted.

When all the latching arms 220 are in the unfolded state or the retracted state, all the escape grooves 224 are located on the same virtual circle, and the virtual circle matches the shape of the wall of the cylinder section 110 of the lampshade 100. Therefore, When installing the lampshade 100, the column section 110 can be at least partially accommodated in the avoidance groove 224. This can on the one hand make the entire lamp structure more compact after the lampshade 100 is installed, and on the other hand improve the stability of the lampshade 100 after it is installed.

Furthermore, in this embodiment, the outer peripheral surface of the lamp holder 211 is cylindrical. The clamping arm 220 has an arc-shaped structure, and the clamping arm 220 includes an inner arc side surface 220e and an opposite outer arc side surface 220f along the radial direction of the lamp holder 211. Among them, the inner arc side 220e of the clamping arm 220 close to the base 210 is adapted to the outer peripheral surface of the lamp holder 211. Therefore, the inner arc side 220e of the clamping arm 220 in the folded state can fit the outer peripheral surface of the lamp holder 211, so as to The space occupied by the clamping arm 220 in the folded state is further reduced.

Please refer to Figure 1, Figure 5, Figure 6 and Figure 7. In this embodiment, in order to prevent the clamping arm 220 in the folded state from freely unfolding or accidentally being deployed by accident, an end of the clamping arm 220 away from the pivot fitting point is provided with The second accommodation card slot 225. When the snap-in arms 220 are folded, the second receiving slot 225 is used to receive one end of the adjacent snap-in arm 220 close to the pivot joint. That is to say, the folded clamping arms 220 are connected end to end on the outer peripheral surface of the lamp holder 211 to form a closed loop.

Specifically, the clamping arm 220 includes a limiting part 220a, a hinge part 220b, an arm body part 220c and a clamping part 220d connected in sequence. Among them, the hinge part 220b is pivotally matched with the corresponding lug 213 on the lamp holder 211 through the pivot axis. The limiting part 220a is located at one end of the hinge part 220b. The limiting part 220a is used to engage with the lamp holder 211 when the clamping arm 220 is unfolded. The outer peripheral surfaces of the two arms 220 are in contact with each other to limit the maximum expansion range of the clamping arm 220 . The arm body part 220c is located at the other end of the hinge part 220b, and the arm body part 220c is provided with the escape groove 224 and the first receiving slot 221. A second accommodation slot 225 is provided on the clamping portion 220d. The second accommodation slot 225 is used to receive the limiting portion 220a on the adjacent clamping arm 220 when the clamping arm 220 is retracted.

Optionally, the limiting part 220a, the hinge part 220b, the arm body part 220c and the clamping part 220d are connected in sequence and form an integrated structure.

Furthermore, the second accommodation slot 225 has an interference fit with the limiting portion 220a on the adjacent snap arm 220 to prevent the folded snap arm 220 from expanding freely or being accidentally bumped and then deployed.

In some embodiments, the second card-accommodating slot 225 is a side opening, and a limiter 226 is provided at the bottom of the second card-accommodating slot 225 . The limiter 226 is used to resist the card accommodated in the second card-accommodating slot 225 . The limiting portion 220a is formed to form an interference fit between the second receiving slot 225 and the limiting portion 220a on the adjacent engaging arm 220.

In other embodiments, a first magnetic member (not shown) is provided on the side wall of the second card-accommodating slot 225, and a second magnetic member is provided on the limiting portion 220a of the adjacent clamping arm 220. The first magnetic part and the second magnetic part are magnetically matched. After the limiting part 220a is received in the second accommodation slot 225, the first magnetic part and the second magnetic part are It is sucked in, thereby restricting the folded clamping arm 220 from being able to expand freely or being accidentally touched.

Optionally, the first magnetic attraction component is a magnet, and the second magnetic attraction component is a metal that can be attracted by the magnet; or the second magnetic attraction component is a magnet, and the first magnetic attraction component is a metal that can be attracted by the magnet; or the third magnetic attraction component is a metal that can be attracted by the magnet. The first magnetic piece and the second magnetic piece are both magnets, and the polarities of the first magnetic piece and the second magnetic piece are opposite, that is, they are N pole and S pole respectively.

In some embodiments, an elastic return member (not shown) is provided between the clamping arm 220 and the lamp holder 211, and the elastic return member is used to drive the clamping arm 220 to expand. When the clamping arms 220 are in the folded state, the elastic return member is in a compressed state, and because the second receiving slot 225 of each clamping arm 220 interferes with the limiting portion 220a on the adjacent clamping arm 220 , at this time, the force of the elastic return member acting on the clamping arm 220 is less than the force (friction force or magnetic force) between the second accommodation slot 225 and the limiting part 220a. Therefore, the elastic return member cannot drive the folded state. The latch arm 220 unfolds. When the second receiving slot 225 of the clamping arm 220 is released from the limiting portion 220a on the adjacent clamping arm 220 under the action of external force, the clamping arm 220 at this time is driven by the elastic return member. It can be quickly deployed, and each snap-in arm 220 can be directly deployed to the maximum extent through the synergy between the elastic return member and the limiting portion 220a, so that the lampshade 100 can be directly installed, which is more convenient and faster.

Optionally, the elastic return member is a torsion spring or a spring piece.

Please refer to Figures 1, 2, 3 and 4. This embodiment also provides a lamp. The lamp also includes a heat dissipation device 300, a power supply device 400, a light adjustment device 500 and the clamping device 200 provided above. The clamping device 200 is the lamp body of the lamp that emits light. The heat dissipation device 300, the power supply device 400 and the light adjustment device 500 are respectively provided on the backlight side of the clamping device 200, and are arranged in sequence along a straight line.

Referring to FIG. 4 and FIG. 10 , the heat dissipation device 300 includes a heat dissipation base 310 , a heat dissipation medium 320 , a first connection base 330 and a fan assembly 340 . Among them, the heat sink 310 is a hollow structure, and the heat sink 310 is connected to the lamp holder 211. The heat dissipation base 310 is provided with an air inlet 311 and an air outlet 312. The air inlet 311 and the air outlet 312 allow air to enter and exit the heat dissipation base 310 to facilitate heat dissipation.

The heat dissipation medium 320 , the fan assembly 340 and the first connection base 330 are sequentially arranged along the axis direction of the heat dissipation base 310 . The heat dissipation medium 320 is disposed in the heat dissipation seat 310 and contacts the light-emitting component 212 of the light-emitting device, so as to facilitate heat exchange between the heat dissipation medium 320 and the light-emitting device, and at the same time, the light-emitting component 212 is fixed on the lamp holder 211 . The first connection base 330 is disposed on a side of the heat dissipation base 310 away from the heat dissipation medium 320. The first connection base 330 is used to detachably connect the battery module. The fan assembly 340 is disposed on the first connection base 330 and is located between the heat dissipation medium 320 and the first connection base 330. The fan assembly 340 is used to form an airflow flowing from the air inlet 311 to the air outlet 312 in the heat dissipation base 310 to bring The heat on the heat dissipation medium 320 is removed to achieve the purpose of heat dissipation.

Referring to FIGS. 4 , 10 , 11 and 12 , the power supply device 400 includes a mounting housing 410 , a power supply battery 420 and a second connection base 430 . Among them, the installation shell 410 is a long column structure, and the installation One end of the housing 410 is detachably connected to the heat dissipation device 300 . Specifically, the installation housing 410 is set on the first connection base 330 and is detachably connected to the first connection base 330 . The detachable connection methods include snap-on or threaded connections.

Further, a battery compartment 411 is provided in the installation housing 410 . The power supply battery 420 is disposed in the battery compartment 411 of the installation housing 410. The power supply battery 420 can provide electric energy for the light emitting device, the heat dissipation device 300 and the light adjustment device 500.

The second connection base 430 is disposed at an end of the installation housing 410 away from the heat sink 300 , and the second connection base 430 is connected to the installation housing 410 through screws. The second connection base 430 is also used to detachably connect with the light adjustment device 500 .

Please also refer to FIG. 13 . The above-mentioned light adjustment device 500 includes a base 510 , an adjustment ring 520 and a circuit board 530 . The base 510 and the second connection base 430 are detachably connected, such as snap-fit or threaded connection. The base 510 is provided with a receiving cavity 511 inside, and the base 510 is also provided with two Hall sensors 540 . The two Hall sensors 540 are arranged in a radial offset along the radial direction of the receiving cavity 511 . In this embodiment, the two Hall sensors 540 are respectively close to the inner wall of the base 510 .

The adjusting ring 520 is sleeved on the outer peripheral surface of the base 510, and the adjusting ring 520 sleeve is rotationally matched with the base 510, so that the adjusting ring 520 is sleeved on the base 510 and can rotate freely. A preset number of first magnets are distributed along the circumferential direction of the inner wall surface of the adjustment ring 520. The first magnets are used to inductively cooperate with the Hall sensors 540. Therefore, by rotating the adjustment ring 520, the passage of the two Hall sensors can be changed. The magnetic flux in 540 is also different because the two Hall sensors 540 are arranged in a staggered manner, that is, asymmetrically arranged. Therefore, when the adjustment ring 520 is rotated, the changes in the magnetic flux in the two Hall sensors 540 are also different.

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

The optional implementations of the 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 of the above implementations. Within the scope of the technical concept of the embodiments of the present application, the embodiments of the present application can be modified. The technical solution is subjected to various simple modifications, and these simple modifications all belong to the protection scope of the embodiments of the present application.

In addition, it should be noted that each specific technical feature described in the above specific embodiments Characteristics can be combined in any suitable manner as long as there is no conflict. In order to avoid unnecessary repetition, the embodiments of this application will not further describe various possible combinations.

In addition, any combination of different implementation modes of the embodiments of the present application can also be performed. As long as they do not violate the ideas of the embodiments of the present application, they should also be regarded as the content disclosed in the embodiments of the present application.

Claims

A clamping device, characterized in that the clamping device (200) is used to connect external accessories, and the outer peripheral surface of the accessory is provided with a plurality of clamping bumps (130);

The clamping device (200) includes:

matrix(210); and

A plurality of snap-in arms (220) are distributed along the outer circumferential surface of the base body (210), and are pivotally matched with the base body (210) respectively, so that the snap-in arms (220) can be relative to the base body (210). 210) unfold and retract, each of the clamping arms (220) is provided with a first accommodation slot (221) for accommodating the clamping protrusion (130), wherein the first accommodation slot (221) is The clamping groove (221) is used to form a backstop fit with the clamping protrusion (130) to fix the accessory on the clamping arm (220).
The clamping device according to claim 1, characterized in that the clamping device (200) further includes a locking component (230), and at least one of the clamping arms (220) is rotatably provided with the locking assembly. Component (230), the locking component (230) is used to abut the latching protrusion (130) in the corresponding first accommodation slot (221) to prevent the latching protrusion from The block (130) protrudes from the first accommodation slot (221).
The clamping device according to claim 2, characterized in that the locking assembly (230) includes:

The rotating base (231) is arranged through the clamping arm (220) along the thickness direction of the base body (210), and the rotating base (231) rotates with the clamping arm (220); and

Two pushing members (232) are respectively provided at both ends of the rotating base (231);

Among them, one of the pushing pieces (232) is located on the same side as the opening (222) of the first accommodation slot (221), and the other pushing piece (232) is located on the clamping arm (222). 220) On the side facing away from the first accommodation slot (221), the two pushing members (232) are linked through the rotating base (231).
The clamping device according to claim 1, characterized in that, along the thickness direction of the base body (210), one side of the first accommodation slot (221) is provided with the clamping protrusion ( 130) into the opening (222), the width of the opening (222) along the length direction of the clamping arm (220) is smaller than the width of the first accommodation slot (221) along the length of the clamping arm (222). 220) The width in the length direction is such that a limiting protrusion (223) is formed on the side wall of the first accommodation slot (221).
The clamping device according to claim 1, characterized in that the clamping arm (220) A second accommodation slot (225) is provided at one end away from the pivot fitting;

When the clamping arm (220) is folded, the second receiving slot (225) is used to receive one end of the adjacent clamping arm (220) close to the pivot fitting point.
The clamping device according to claim 5, characterized in that the second accommodation slot (225) is a side opening, and a limiter (226) is provided at the bottom of the second accommodation slot (225). , the limiting member (226) is used to resist the clamping arm (220) received in the second accommodation slot (225), so as to prevent the clamping arm (220) from being accommodated in the second accommodation slot (225). ) of the clamping arm (220) comes out.
The clamping device according to claim 1, characterized in that the clamping arm (220) has an arc-shaped structure, and the clamping arm (220) is close to the inner arc side surface (220e) of the base body (210). It is adapted to the outer peripheral surface of the base body (210).
The clamping device according to claim 1, characterized in that the clamping arm (220) is also provided with an escape groove (224), and the escape groove (224) is between the first accommodation slot and the clamping device. (221) to the pivot fitting point, the width of the escape groove (224) is adapted to the wall thickness of the accessory;

Wherein, when all the clamping arms (220) are in the unfolded state or the stowed state, all the escape grooves (224) are located on the same virtual circle, and the virtual circle is consistent with the shape of the wall of the accessory. suitable.
The clamping device according to claim 1, characterized in that an elastic return member is provided between the clamping arm (220) and the base body (210), and the elastic return member is used to drive the clamping member. The connecting arm (220) is unfolded.
A lamp, characterized by comprising the clamping device (200) according to any one of claims 1-9, wherein the base body (210) is a lamp body that emits light.