CN116772164A - Clamping device and lamp - Google Patents

Abstract

The application discloses a clamping device and a lamp, and relates to the technical field of lighting equipment. The clamping device comprises a base body and a plurality of clamping arms; the clamping arms are distributed along the outer peripheral surface of the base body and are respectively in pivot fit with the base body so 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 the clamping convex block, wherein the first accommodating clamping grooves are used for forming stop fit with the clamping convex blocks so as to fix the accessory on the clamping arms. The clamping device disclosed by the application is simple to assemble and disassemble, does not occupy space, is multifunctional and has good practicability, and the use experience of a user is greatly improved.

Description

Clamping device and lamp

Technical Field

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

Background

As a tool for lighting, lamps are becoming increasingly popular for use in people's lives. Commonly used lamps are externally connected with functional accessories on the light-emitting side, such as a lampshade for processing the light emitted by the lamps.

At present, the lampshade and the lamp body are arranged into an integrated structure, the lampshade is not detachable, and the replaceability is poor. In order to solve the problem of poor replaceability, the lamp shade and the lamp body are detachably connected in the prior art, for example, the lamp shade and the lamp body are in threaded connection or clamping connection. When the lamp shade is dismounted by adopting a threaded connection mode, the lamp shade needs to be screwed for a plurality of times, and the operation is time-consuming and labor-consuming; when adopting the mode of joint connection, need install a joint structure that is used for the joint lamp shade again between lamps and lanterns body and lamp shade, when dismantling the lamp shade, in order to conveniently carry, avoid joint structure occupation space, need dismantle joint structure in the lump, consequently the dismouting is operated and is taken time and energy equally, leads to user experience poor. In addition, the clamping structure can only be matched with a lamp shade of one type, and is single in function and poor in practicability.

Disclosure of Invention

The application aims to provide a clamping device and a lamp, which are used for solving the defects in the prior art.

In order to achieve the above object, in a first aspect, the present application provides a clamping device, the clamping device is used for an external fitting, and a plurality of clamping protruding blocks are arranged on the outer circumferential surface of the fitting;

the clamping device comprises:

a base; and

the clamping arms are distributed along the outer peripheral surface of the base body and are respectively matched with the base body in a pivoting mode, so that the clamping arms can be unfolded and folded relative to the base body, each clamping arm is provided with a first accommodating clamping groove for accommodating the clamping convex block, and the first accommodating clamping grooves are used for forming backstop matching with the clamping convex blocks so as to fix the accessory on the clamping arm.

As a further improvement of the above technical scheme:

with reference to the first aspect, in one possible implementation manner, the clamping device further includes a locking component, at least one of the clamping arms is rotatably provided with the locking component, and the locking component is used for abutting against the clamping projection in the corresponding first accommodating clamping groove so as to prevent the clamping projection from falling out of the first accommodating clamping groove.

With reference to the first aspect, in one possible implementation manner, the locking assembly includes:

the rotating seat penetrates through the clamping arm along the thickness direction of the base body and is in rotating fit with the clamping arm; and

the two pushing pieces are respectively arranged at two ends of the rotating seat;

one of the pushing pieces and the opening part of the first accommodating clamping groove are positioned on the same side, the other pushing piece is positioned on one side, opposite to the first accommodating clamping groove, of the clamping arm, and the two pushing pieces are linked through the rotating seat.

With reference to the first aspect, in one possible implementation manner, along a thickness direction of the substrate, an opening portion for the clamping projection to enter is formed on a side surface of the first accommodating clamping groove, and a width of the opening portion along a length direction of the clamping arm is smaller than a width of an inner portion of the first accommodating clamping groove along the length direction of the clamping arm, so that a limiting protrusion is formed on a side wall of the first accommodating clamping groove.

With reference to the first aspect, in one possible implementation manner, a second accommodating clamping groove is formed at one end of the clamping arm away from the pivot fitting position;

when the clamping arms are folded, the second accommodating clamping groove is used for accommodating one end, close to the pivot matching position, of the adjacent clamping arm.

With reference to the first aspect, in one possible implementation manner, the clamping arm includes:

a limiting part which is used for abutting against the outer peripheral surface of the base body when the clamping arm is unfolded;

a hinge pivotally engaged with the base;

the arm body is provided with the first accommodating clamping groove; and

the clamping part is provided with a second accommodating clamping groove which is used for accommodating the limiting parts on the adjacent clamping arms when the clamping arms are folded;

the limiting part, the hinge part, the arm body part and the clamping part are sequentially connected and are of an integrated structure.

With reference to the first aspect, in one possible implementation manner, the second accommodating card slot is a side opening, and a limiting piece is disposed at a bottom of the second accommodating card slot, and the limiting piece is configured to abut against and receive the clamping arm of the Rong Zaisuo second accommodating card slot, so as to prevent the clamping arm accommodated in the second accommodating card slot from falling out.

With reference to the first aspect, in one possible implementation manner, the clamping arm is in an arc structure, and an inner arc side surface of the clamping arm, which is close to the base body, is matched with the outer peripheral surface of the base body.

With reference to the first aspect, in one possible implementation manner, the clamping arm is further provided with an avoidance groove, the avoidance groove is between the first accommodating clamping groove and the pivot matching position, and the width of the avoidance groove is adapted to the wall thickness of the accessory;

when all the clamping arms are in the unfolding state or the storage state, all the avoiding grooves are located on the same virtual circle, and the virtual circle is matched with the shape of the wall body of the accessory.

With reference to the first aspect, in one possible implementation manner, an elastic reset piece is further disposed between the clamping arm and the base body, and the elastic reset piece is used for driving the clamping arm to be unfolded.

In order to achieve the above object, in a second aspect, the present application further provides a lamp, including the fastening device provided in the first aspect, wherein the substrate is a lamp body that emits light.

Compared with the prior art, the application has the beneficial effects that:

the application provides a clamping device and a lamp, wherein the clamping device distributes a plurality of clamping arms along the outer peripheral surface of a base body, and the clamping arms are pivotally matched with the base body, so that the clamping arms can be unfolded and folded relative to the base body, when a fitting is installed, clamping convex blocks on the outer peripheral surface of the fitting are respectively placed in corresponding first accommodating clamping grooves, the clamping convex blocks are in stop fit with the first accommodating clamping grooves, and therefore the fitting is fixed on the clamping arms, and the installation is completed. When the fitting is disassembled, the clamping convex blocks are disengaged from the first accommodating clamping grooves, and the disassembly and the assembly are simple. After the fitting is disassembled, the clamping arms can be kept in a folded state, the joint arms are not required to be disassembled together, the space is not occupied, and the use experience of a user is greatly improved.

In addition, the clamping arm can be unfolded and folded relative to the base body, so the clamping device has at least two clamping states, one is in a state that the clamping arm is unfolded relative to the base body, and the other is in a state that the clamping arm is folded relative to the base body. From this, two kinds of joint states can be used to the joint installation of the accessory of different models or different kinds of accessories to greatly promote joint device's function, the practicality is better, further promotes user experience.

Additional features and advantages of the application will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate only certain embodiments of the application and, therefore, should not be considered as limiting the scope, since it is possible to obtain other related drawings from the drawings without inventive step by those of ordinary skill in the art. In the drawings:

fig. 1 shows a schematic perspective view of a lamp provided by an embodiment of the application, wherein a large-size lampshade is installed on the lamp;

fig. 2 is a schematic perspective view of the lamp of fig. 1 without a lampshade;

fig. 3 is a schematic perspective view of a lamp with a small-sized lampshade according to an embodiment of the present application;

FIG. 4 shows an exploded view of the lamp of FIG. 3 without a lamp cover;

FIG. 5 shows an exploded view of the snap-fit device of the luminaire of FIG. 4;

fig. 6 is a schematic diagram illustrating an unfolded state of a clamping arm in a lamp clamping device according to an embodiment of the present application;

FIG. 7 shows an enlarged partial schematic view at A in FIG. 6;

FIG. 8 illustrates a front view of the luminaire illustrated in FIG. 2;

FIG. 9 shows an enlarged partial schematic view at B in FIG. 8;

FIG. 10 illustrates an exploded view of the heat sink of the light fixture of FIG. 4;

FIG. 11 is a schematic view showing the clamping arms in the lamp of FIG. 8 in a retracted state;

FIG. 12 shows a cross-sectional view taken along line C-C of FIG. 11;

fig. 13 shows a partially enlarged schematic view at D in fig. 12.

Reference numerals illustrate:

100. a lamp shade; 110. a spar section; 120. a divergent section; 130. a clamping convex block;

200. a clamping device; 210. a base; 211. a lamp holder; 212. a light emitting assembly; 2120. a light emitting element; 2121. a mounting piece; 2122. a light transmitting sheet; 213. a lug; 220. a clamping arm; 220a, a limiting part; 220b, a hinge; 220c, arm body; 220d, a clamping part; 220e, inner arc side; 220f, outer arc side; 221. a first accommodating clamping groove; 222. an opening portion; 223. a limit protrusion; 224. an avoidance groove; 225. the second accommodating clamping groove; 226. a limiting piece; 230. a locking assembly; 231. a rotating seat; 232. a pushing member;

300. a heat sink; 310. a heat dissipation seat; 311. an air inlet; 312. an air outlet; 320. a heat dissipation medium; 330. a first connection base; 340. a fan assembly;

400. a power supply device; 410. a mounting shell; 411. a battery compartment; 420. a power supply battery; 430. a second connecting seat;

500. a light adjusting device; 510. a base; 511. a receiving chamber; 520. an adjusting ring; 530. a circuit board; 540. a hall sensor;

w-thickness direction.

Detailed Description

The following describes the detailed implementation of the embodiments of the present application with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the application, are not intended to limit the application.

It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other.

In the embodiments of the present 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. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

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

Referring to fig. 1, 2, 3 and 4, the present embodiment provides a clamping device 200. The clamping device 200 is applied to a lamp, wherein the clamping device 200 is used for externally connecting an accessory, and the accessory is detachably connected with the clamping device 200.

The accessory is used for processing the light emitted by the lamp, for example, the accessory can be a lampshade 100, a reflecting umbrella, a soft umbrella and the like. In this embodiment, the accessory is selected as the lamp shade 100.

In this embodiment, the lampshade 100 includes a cylindrical section 110 and a divergent section 120 integrally connected to the cylindrical section 110, the cylindrical section 110 of the lampshade 100 is detachably connected to the fastening device 200, and the divergent section 120 has a horn shape for gathering light.

Further, the cylindrical section 110 of the lampshade 100 is in a snap fit with the snap device 200, and in this embodiment, a plurality of snap protrusions 130 are disposed on the outer peripheral surface of the cylindrical section 110.

Referring to fig. 4, 5, 6 and 7, the 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 peripheral surface of the base 210 and are pivotally engaged with the base 210, so that the clamping arms 220 can rotate relative to the base 210, and the clamping arms 220 can be unfolded and folded relative to the base 210.

Further, the base 210 may be a separate fitting mounted to the luminaire or may be part of the luminaire itself. In the present embodiment, the base 210 is designed as a part of the luminaire itself, wherein the base 210 may be a housing of the luminaire or a module of the luminaire.

Specifically, in the present embodiment, the substrate 210 is a lamp body that emits light from a lamp. The light emitting side of the lamp is defined herein as the light emitting side, and the side facing away from the light emitting side is defined as the backlight side.

The base 210 includes a lamp socket 211 and a light emitting assembly 212 disposed on the lamp socket 211, and the light emitting assembly 212 includes a light emitting element 2120, a mounting sheet 2121, and a light transmitting sheet 2122. The light emitting element 2120 is mounted on the mounting sheet 2121, and the light transmitting sheet 2122 covers the light emitting element 2120, and a lamp bead (not shown) for emitting light is provided on the light emitting element 2120. 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 210 and are respectively pivotally matched with the lamp holder 211, so that the clamping arms 220 can be unfolded and folded relative to the base 210, and therefore, the clamping arms 220 have two states, one of which is an unfolded state and the other of which is a folded state. Wherein, when folding the state, can make things convenient for lamps and lanterns to accomodate.

In the present embodiment, when all the clip arms 220 are in the unfolded state, the large-sized lamp shade 100 can be mounted (refer to fig. 1 and 2); when all of the clip arms 220 are in the collapsed state, the smaller sized globe 100 may be installed (see fig. 3 and 4). Of course, in some embodiments, different types of other accessories may be installed when all of the snap arms 220 are in the expanded or collapsed state.

Fig. 4 and 5 in some embodiments, the plurality of clamping arms 220 are uniformly distributed along the circumference of the lamp socket 211, so that the stress of each clamping arm 220 is uniform after the lamp shade 100 is installed, and the beauty is improved.

Further, the outer circumferential 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 positions of the clamping arms 220. Each of the snap arms 220 is pivotally engaged with a corresponding one of the lugs 213 by a pivot shaft such that the snap arms 220 can be unfolded and folded with respect to the lamp socket 211. And the axial direction of the pivot shaft is parallel to the thickness direction W of the lamp socket 211.

Each clamping arm 220 is provided with a first accommodating clamping groove 221, and the number of clamping convex blocks 130 on the outer circumferential surface of the column casing section 110 is consistent with that of the first accommodating clamping grooves 221.

Referring to fig. 1, when the lampshade 100 with a larger size is installed, all the clamping arms 220 are in an unfolded state, then the clamping convex blocks 130 on the column section 110 of the lampshade 100 correspond to the first accommodating clamping grooves 221 on each clamping arm 220, and the clamping convex blocks 130 are accommodated in the first accommodating clamping grooves 221, so that the first accommodating clamping grooves 221 and the corresponding clamping convex blocks 130 form a non-return fit. When the lampshade 100 with a larger size is disassembled, the engagement between the clamping projection 130 and the first accommodating clamping groove 221 is released, then the lampshade 100 is disassembled, and all the unfolded clamping arms 220 are folded so as to be convenient to store. When the lampshade 100 with smaller installation size is installed, all the clamping arms 220 are in the folded state, the installation steps are the same as those of the lampshade 100 with larger installation size, and all the clamping arms 220 are kept in the folded state during the disassembly.

It should be appreciated that the above-described unfolded state and folded state are relatively speaking, and the unfolded state has various situations of complete unfolding and incomplete unfolding, and may be specifically adjusted according to the size of the lampshade 100, so that the unfolded state of the clamping arm 220 is adapted to the lampshade 100.

The retaining fit formed by the first accommodating groove 221 and the corresponding engaging protrusion 130 may be an interference fit or an embedded engagement.

Therefore, the clamping device 200 provided in this embodiment integrates the clamping arm 220 of the clamping lampshade 100 on the base 210, and the clamping arm 220 can realize rapid installation and disassembly of the lampshade 100. After the lampshade 100 is disassembled, the clamping arms 220 can be folded, the clamping arms 220 do not need to be disassembled together, the space is not occupied, and the use experience of a user is greatly improved.

In addition, since the latch arm 220 can be unfolded and folded with respect to the base 210, the latch device 200 has at least two latch states, one in a state in which the latch arm 220 is unfolded with respect to the base 210 and the other in a state in which the latch arm 220 is folded with respect to the base 210. From this, two kinds of joint states can be used to the joint installation of the accessory of different models or different kinds of accessories to greatly promote the function of joint device 200, the practicality is better, further promotes user experience.

Further, the number of snap arms 220 may be two, three, four, five, or other numbers. Only three snap arms 220 are illustrated in fig. 6. It should be understood that the above description of the number of the latch arms 220 is merely illustrative, and is not intended to limit the scope of the present application.

Along the thickness direction W of the substrate 210, an opening 222 into which the clamping bump 130 enters is provided on a surface of the first accommodating clamping groove 221 near the light emitting side of the substrate 210, and a width of the opening 222 along the length direction of the clamping arm 220 is smaller than a width of the first accommodating clamping groove 221 along the length direction of the clamping arm 220 (wherein, the length direction is a left-right direction of the view angle as shown in fig. 7). Therefore, in the present embodiment, the side wall of the first accommodating clamping groove 221 near the pivot fitting position is formed with the limiting protrusion 223, the limiting protrusion 223 is opposite to the bottom of the first accommodating clamping groove 221, and the dimension between the limiting protrusion 223 and the bottom of the first accommodating clamping groove 221 is adapted to the dimension of the clamping protrusion 130 along the thickness direction thereof. The opening 222 is formed between the limiting protrusion 223 and the side wall of the first accommodating clamping groove 221 away from the pivot fitting.

Referring to fig. 1, 2, 7, 8 and 9, in the present embodiment, the fastening device 200 further includes a locking component 230. The locking assembly 230 is disposed on at least one of the clamping arms 220, that is, the locking assembly 230 may be disposed on a portion of the clamping arms 220, or the locking assembly 230 may be disposed on all of the clamping arms 220.

The locking assembly 230 is used for abutting against the clamping protrusion 130 received in the corresponding first receiving slot 211, so as to prevent the clamping protrusion 130 from falling out of the first receiving slot 221, thereby realizing the fixed installation of the whole lampshade 100.

Specifically, the locking assembly 230 is partially located in the first accommodating slot 221, and is close to a side of the first accommodating slot 221 away from the pivot fit. Since the locking assembly 230 can rotate relative to the locking arm 220, when the locking protrusion 130 enters the first accommodating groove 221, the lamp shade 100 is rotated (in this embodiment, as shown in fig. 1, the lamp shade 100 is rotated clockwise) so that the locking protrusion 130 is locked between the limiting protrusion 223 and the first accommodating groove 221, and then the locking assembly 230 is rotated, so that the locking assembly 230 pushes the locking protrusion 130, limiting the movement of the locking protrusion 130 in the first accommodating groove 221, thereby preventing the locking protrusion 130 from falling out of the first accommodating groove 221, and locking the locking protrusion 130 in the first accommodating groove 221, so as to realize the installation and fixation of the lamp shade 100. When the lampshade 100 is removed, the locking assembly 230 is released from abutting against the locking projection 130, and then the lampshade 100 is reversely rotated (in this embodiment, the lampshade 100 is rotated anticlockwise as shown in fig. 1), so that the locking projection 130 corresponds to the opening 222 of the first accommodating clamping groove 221, and the lampshade 100 can be removed.

Specifically, the locking assembly 230 includes a rotating seat 231 and two push members 232. The rotation seat 231 is disposed through the chucking arm 220 in the thickness direction W of the base 210, and the rotation seat 231 is rotatably fitted with the chucking arm 220. The two pushing members 232 are respectively disposed at two ends of the rotating seat 231. One pushing member 232 is located at the same side as the opening 222 of the first accommodating slot 221, the other pushing member 232 is located at a side of the clamping arm 220 opposite to the first accommodating slot 221, and the two pushing members 232 are linked by the rotating seat 231.

Therefore, the pushing member 232 located in the first accommodating slot 221 can be driven to rotate by the rotating seat 231 by pulling the pushing member 232 facing away from the side of the first accommodating slot 221, so that the pushing member 232 located in the first accommodating slot 221 is abutted or released from the abutment with the engaging protrusion 130. When the pushing piece 232 located in the first accommodating clamping groove 221 is abutted against the clamping projection 130, the clamping projection 130 is locked in the corresponding first accommodating clamping groove 221; when the pushing member 232 located in the first accommodating slot 221 is released from abutting with the locking protrusion 130, the locking protrusion 130 can move in the corresponding first accommodating slot 221.

Referring to fig. 1, 6 and 7, further, the latch arm 220 is further provided with an avoidance slot 224, where the avoidance slot 224 is between the first accommodating slot 221 and the pivot shaft, and a width of the avoidance slot 224 is adapted to a wall thickness of the barrel section 110 of the lampshade 100.

When all the clamping arms 220 are in the unfolded state or the folded state, all the avoidance grooves 224 are positioned on the same virtual circle, and the virtual circle is matched with the shape of the wall body of the column section 110 of the lampshade 100, so that when the lampshade 100 is installed, the column section 110 can be at least partially contained in the avoidance grooves 224, and the purpose is that the whole lamp structure after the lampshade 100 is installed can be improved to be more compact, and the stability of the lampshade 100 after the lampshade 100 is installed is improved to be improved.

Further, in the present embodiment, the outer circumferential 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 220e and an opposite outer arc side 220f along a radial direction of the lamp holder 211. 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, so that the inner arc side 220e of the clamping arm 220 in the folded state can be attached to the outer peripheral surface of the lamp holder 211, so as to further reduce the space occupied by the clamping arm 220 in the folded state.

Referring to fig. 1, 5, 6 and 7, in the present embodiment, in order to avoid free or erroneous touching of the clamping arm 220 in the folded state, a second accommodating slot 225 is disposed at an end of the clamping arm 220 away from the pivot mating portion. When the clamping arms 220 are folded, the second accommodating clamping groove 225 is used for accommodating one end of the adjacent clamping arm 220 close to the pivot matching position. That is, the folded clamping arms 220 are connected end to end around the outer circumference of the lamp holder 211 to form a closed loop.

Specifically, the clamping arm 220 includes a limiting portion 220a, a hinge portion 220b, an arm body portion 220c, and a clamping portion 220d, which are sequentially connected. The hinge portion 220b is pivotally engaged with a corresponding lug 213 on the lamp socket 211 through a pivot shaft, the limiting portion 220a is located at one end of the hinge portion 220b, and the limiting portion 220a is used for abutting against an outer peripheral surface of the lamp socket 211 when the clamping arm 220 is unfolded, so as to limit a maximum width of the unfolding of the clamping arm 220. The arm 220c is located at the other end of the hinge 220b, and the arm 220c is provided with the avoidance groove 224 and the first accommodating groove 221. The clamping portion 220d is provided with a second accommodating clamping groove 225, and the second accommodating clamping groove 225 is used for accommodating the limiting portion 220a on the adjacent clamping arm 220 when the clamping arm 220 is folded.

Alternatively, the limiting portion 220a, the hinge portion 220b, the arm body portion 220c, and the clamping portion 220d are sequentially connected and integrally constructed.

Further, the second accommodating clamping groove 225 is in interference fit with the limiting portion 220a on the adjacent clamping arm 220, so as to prevent the folded clamping arm 220 from being unfolded freely or being unfolded after being touched by mistake.

In some embodiments, the second accommodating clamping groove 225 is a side opening, and a limiting member 226 is disposed at the bottom of the second accommodating clamping groove 225, where the limiting member 226 is configured to be abutted against and received by the limiting portion 220a of the second accommodating clamping groove 225, so that the second accommodating clamping groove 225 and the limiting portion 220a on the adjacent clamping arm 220 form an interference fit.

In other embodiments, a first magnetic attraction member (not shown) is disposed on a side wall of the second accommodating slot 225, a second magnetic attraction member (not shown) is disposed on a limiting portion 220a of the adjacent clamping arm 220, the first magnetic attraction member and the second magnetic attraction member are magnetically matched, and after the limiting portion 220a is accommodated in the second accommodating slot 225, the first magnetic attraction member and the second magnetic attraction member are attracted, so that the folded clamping arm 220 is limited to be unfolded freely or be unfolded after being touched by mistake.

Optionally, the first magnetic attraction piece is a magnet, and the second magnetic attraction piece is a metal which can be attracted by the magnet; or the second magnetic attraction piece is a magnet, and the first magnetic attraction piece is a metal which can be attracted by the magnet; or the first magnetic attraction piece and the second magnetic attraction piece are magnets, and the polarities of the first magnetic attraction piece and the second magnetic attraction piece are opposite, namely an N pole and an S pole respectively.

In some embodiments, a resilient reset member (not shown) is further disposed between the clamping arm 220 and the lamp holder 211, and the resilient reset member is used to drive the clamping arm 220 to be unfolded. When the clamping arms 220 are in the folded state, the elastic restoring member is in a compressed state, and because the second accommodating clamping groove 225 of each clamping arm 220 is in interference fit with the limiting part 220a on the adjacent clamping arm 220, the force of the elastic restoring member on the clamping arms 220 is smaller than the acting force (friction force or magnetic force) between the second accommodating clamping groove 225 and the limiting part 220a, and therefore the elastic restoring member cannot drive the clamping arms 220 in the folded state to be unfolded. When the second accommodating clamping groove 225 of the clamping arm 220 is disengaged from the limiting part 220a of the adjacent clamping arm 220 under the action of external force, the clamping arm 220 is rapidly unfolded under the driving of the elastic resetting piece, and each clamping arm 220 can be directly unfolded to the maximum extent under the synergistic effect of the elastic resetting piece and the limiting part 220a, so that the lampshade 100 can be directly installed, and the lampshade is more convenient and rapid.

Optionally, the elastic restoring element is a torsion spring or a spring sheet.

Referring to fig. 1, fig. 2, fig. 3 and fig. 4, the present embodiment also provides a lamp, which further includes a heat dissipating device 300, a power device 400, a light adjusting device 500, and the above-mentioned fastening device 200. The clamping device 200 is a lamp body for emitting lamplight from a lamp, and the heat dissipation device 300, the power supply device 400 and the lamplight adjusting device 500 are respectively arranged on the backlight side of the clamping device 200 and are sequentially arranged along a linear direction.

Referring to fig. 4 and 10, the heat dissipating device 300 includes a heat dissipating base 310, a heat dissipating medium 320, a first connecting base 330, and a fan assembly 340. The heat sink 310 is hollow, and the heat sink 310 is connected to the lamp holder 211. The heat sink 310 is provided with an air inlet 311 and an air outlet 312, and the air inlet 311 and the air outlet 312 can provide air to enter and exit the heat sink 310 to dissipate heat.

The heat dissipation medium 320, the fan assembly 340, and the first connection holder 330 are sequentially arranged along the axial direction of the heat dissipation holder 310. The heat dissipation medium 320 is disposed in the heat dissipation base 310 and abuts against the light emitting component 212 in the light emitting device, so that the heat dissipation medium 320 exchanges heat with the light emitting device, and the light emitting component 212 is fixed on the lamp holder 211. The first connecting seat 330 is disposed at a side of the heat dissipation seat 310 away from the heat dissipation medium 320, and the first connecting seat 330 is used for detachably connecting the battery module. The fan assembly 340 is disposed on the first connection seat 330 and located between the heat dissipation medium 320 and the first connection seat 330, and the fan assembly 340 is configured to form an air flow flowing from the air inlet 311 to the air outlet 312 in the heat dissipation seat 310, so as to take away heat on the heat dissipation medium 320, thereby achieving the purpose of heat dissipation.

Referring to fig. 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. The installation casing 410 is a long cylindrical structure, and one end of the installation casing 410 is detachably connected with the heat dissipating device 300, specifically, the installation casing 410 is sleeved on the first connection seat 330 and is detachably connected with the first connection seat 330. Wherein the detachable connection mode comprises clamping connection or threaded connection.

Further, a battery compartment 411 is provided in the mounting case 410. The 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 for the light emitting device, the heat dissipating device 300 and the light adjusting device 500.

The second connecting seat 430 is disposed at an end of the mounting housing 410 away from the heat dissipating device 300, and the second connecting seat 430 is connected to the mounting housing 410 by a screw. The second connection base 430 is further configured to be detachably connected to the light adjusting device 500.

Referring to fig. 13, the light adjusting device 500 includes a base 510, an adjusting ring 520, and a circuit board 530. Wherein, the base 510 is detachably connected to the second connecting base 430, such as a clamping connection or a threaded connection. The inside of the base 510 is provided with a containing cavity 511, the inside of the base 510 is also provided with two Hall sensors 540, and the two Hall sensors 540 are arranged in a staggered manner along the radial direction of the containing cavity 511. In the present embodiment, two hall sensors 540 are respectively adjacent to the inner wall surface of the base 510.

The adjusting ring 520 is sleeved on the outer peripheral surface of the base 510, and the adjusting ring 520 is sleeved on the base 510 in a rotating fit, so that the adjusting ring 520 is sleeved on the base 510 and can rotate freely. The inner wall surface of the adjusting ring 520 is circumferentially provided with a preset number of first magnet pieces, and the first magnet pieces are used for being in inductive fit with the hall sensors 540, so that the magnetic flux passing through the two hall sensors 540 can be changed by rotating the adjusting ring 520, and the magnetic flux in the two hall sensors 540 is changed by rotating the adjusting ring 520 because the two hall sensors 540 are arranged in a staggered manner, namely in an asymmetric manner.

The circuit board 530 is disposed on the base 510 and located in the accommodating cavity 511, and a control unit (not shown) is integrated on the circuit board 530, and the control unit is electrically connected to the two hall sensors 540 respectively, and the control unit is further electrically connected to the light emitting assembly 212. In the present embodiment, the control unit is configured to acquire the change information of the magnetic fluxes in the two hall sensors 540, and adjust the brightness of the lamp light emitted by the lamp according to the change information of the magnetic fluxes.

The foregoing details of the optional implementation of the embodiment of the present application have been described in detail with reference to the accompanying drawings, but the embodiment of the present application is not limited to the specific details of the foregoing implementation, and various simple modifications may be made to the technical solution of the embodiment of the present application within the scope of the technical concept of the embodiment of the present application, and these simple modifications all fall within the protection scope of the embodiment of the present application.

In addition, the specific features described in the foregoing embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described further.

In addition, any combination of various embodiments of the present application may be performed, so long as the concept of the embodiments of the present application is not violated, and the disclosure of the embodiments of the present application should also be considered.

Claims (11)

1. The clamping device is characterized in that the clamping device (200) is used for externally connecting an accessory, and a plurality of clamping convex blocks (130) are arranged on the outer peripheral surface of the accessory;

the clamping device (200) comprises:

a base (210); and

the clamping arms (220) are distributed along the outer peripheral surface of the base body (210) and are respectively matched with the base body (210) in a pivoting mode, so that the clamping arms (220) can be unfolded and folded relative to the base body (210), first accommodating clamping grooves (221) used for accommodating the clamping convex blocks (130) are formed in each clamping arm (220), and the first accommodating clamping grooves (221) are used for forming a non-return fit with the clamping convex blocks (130) so as to fix the fitting on the clamping arms (220).

2. The clamping device according to claim 1, wherein the clamping device (200) further comprises a locking assembly (230), the locking assembly (230) is rotatably arranged on at least one clamping arm (220), and the locking assembly (230) is used for abutting against the clamping convex blocks (130) in the corresponding first accommodating clamping grooves (221) so as to prevent the clamping convex blocks (130) from falling out of the first accommodating clamping grooves (221).

3. The clamping device according to claim 2, wherein the locking assembly (230) comprises:

a rotating seat (231) penetrating through the clamping arm (220) along the thickness direction of the base body (210), wherein the rotating seat (231) is in rotating fit with the clamping arm (220); and

two pushing pieces (232) respectively arranged at two ends of the rotating seat (231);

one of the pushing members (232) and the opening (222) of the first accommodating clamping groove (221) are located at the same side, the other pushing member (232) is located at one side of the clamping arm (220) opposite to the first accommodating clamping groove (221), and the two pushing members (232) are linked through the rotating seat (231).

4. The clamping device according to claim 1, wherein an opening (222) for the clamping projection (130) to enter is formed on one side surface of the first accommodating clamping groove (221) along the thickness direction of the base body (210), and the width of the opening (222) along the length direction of the clamping arm (220) is smaller than the width of the inside of the first accommodating clamping groove (221) along the length direction of the clamping arm (220), so that a limiting protrusion (223) is formed on the side wall of the first accommodating clamping groove (221).

5. The clamping device according to claim 1, wherein a second accommodating clamping groove (225) is formed in the end of the clamping arm (220) away from the pivot fitting;

when the clamping arms (220) are folded, the second accommodating clamping grooves (225) are used for accommodating one end, close to the pivot matching position, of the adjacent clamping arms (220).

6. The clamping device according to claim 1, wherein the clamping arm (220) comprises:

a stopper portion (220 a) for abutting against the outer peripheral surface of the base body (210) when the engagement arm (220) is deployed;

a hinge (220 b) pivotally engaged with the base (210);

an arm body (220 c), wherein the first accommodating clamping groove (221) is arranged on the arm body (220 c); and

the clamping part (220 d), a second accommodating clamping groove (225) is formed in the clamping part (220 d), and the second accommodating clamping groove (225) is used for accommodating the limiting part (220 a) on the adjacent clamping arm (220) when the clamping arm (220) is folded;

the limiting part (220 a), the hinge part (220 b), the arm body part (220 c) and the clamping part (220 d) are sequentially connected and are of an integral structure.

7. The clamping device according to claim 5 or 6, wherein the second accommodating clamping groove (225) is a side opening, a limiting piece (226) is arranged at the bottom of the second accommodating clamping groove (225), and the limiting piece (226) is used for abutting against and receiving the clamping arm (220) of the Rong Zaisuo second accommodating clamping groove (225) so as to prevent the clamping arm (220) accommodated in the second accommodating clamping groove (225) from being separated.

8. The clamping device according to claim 1, wherein the clamping arm (220) has an arc-shaped structure, and an inner arc side surface (220 e) of the clamping arm (220) close to the base body (210) is adapted to an outer peripheral surface of the base body (210).

9. The clamping device according to claim 1, wherein the clamping arm (220) is further provided with an avoidance groove (224), the avoidance groove (224) is between the first accommodating clamping groove (221) and the pivot matching position, and the width of the avoidance groove (224) is matched with the wall thickness of the fitting;

when all the clamping arms (220) are in the unfolding state or the storage state, all the avoiding grooves (224) are located on the same virtual circle, and the virtual circle is matched with the shape of the wall body of the accessory.

10. The clamping device according to claim 1, wherein an elastic restoring member is further provided between the clamping arm (220) and the base body (210), and the elastic restoring member is used for driving the clamping arm (220) to be unfolded.

11. A luminaire characterized by comprising a clamping device (200) according to any one of claims 1-10, wherein the base body (210) is a lamp body emitting light.