CN110906218B

CN110906218B - Ceiling lamp

Info

Publication number: CN110906218B
Application number: CN201910159542.6A
Authority: CN
Inventors: 陈和生; 徐勋爵; 陈耀卫; 许正杭; 柏松
Original assignee: Hangzhou Pannello Lighting Technology Co ltd
Current assignee: Hangzhou Pannello Lighting Technology Co ltd
Priority date: 2018-09-13
Filing date: 2019-03-04
Publication date: 2023-06-23
Anticipated expiration: 2039-03-04
Also published as: CN110906218A

Abstract

The invention relates to a ceiling lamp, which comprises a lamp body and a mounting seat used for being mounted on a ceiling or a supporting plate, wherein the lamp body comprises a lamp frame, a light-emitting component and a lamp body base, and the light-emitting component is mounted in a mounting space formed by the lamp frame and the lamp body base; the lamp is characterized in that a socket and a positioning jack are arranged on the mounting seat, a movable block and a contact pin are arranged on the lamp body base, the lamp body and the mounting seat are in plug-in fit with each other through the movable block and the positioning jack to realize detachable fixed connection, and the socket and the contact pin are in plug-in fit with each other to realize conductive connection. The lamp body and the mounting seat are fixed in position in all directions through the cooperation of the movable block and the jack, and the contact of the contact pin and the socket is conductive, so that the lamp is quick in disassembly, convenient to use and long in service life, simple and reasonable in structure, convenient to manufacture, and firm and stable in fixation.

Description

Ceiling lamp

Technical Field

The invention relates to the field of lamps, in particular to a ceiling lamp.

Background

The ceiling lamp is an important lighting lamp, and has the advantages of attractive and elegant appearance, high brightness, safety, reliability, energy saving, electricity saving and the like. At present, the ceiling lamp is widely applied to various places such as families, offices, entertainment places and the like. At present, the common mounting method adopted by the ceiling lamp is as follows: firstly, the lampshade of the ceiling lamp is detached, then holes are drilled in the ceiling, after the holes are drilled, the plastic expansion pipe is pressed into the holes, the lamp holder is fixed on the ceiling through screws, wires are connected, and finally the lampshade is installed.

In the traditional installation method, the types of parts are more and more complex during installation, two persons are generally required to operate together in the installation process, the installation time is longer, and potential safety hazards of electric shock are likely to occur in the operation process. In addition, disassembly and assembly of the lamp is required on site, which may cause damage to the lamp.

The patent document with the publication number of CN105135296 discloses a fast-assembled ceiling lamp, which comprises a lamp body and a fast-assembled structure, wherein the fast-assembled structure is used for fixing the ceiling lamp on a ceiling or a support, the fast-assembled structure comprises an upper fast-assembled part and a lower fast-assembled part, the upper fast-assembled part is fixed on the ceiling or the support, the lower fast-assembled part is fixed on the lamp body, the lower fast-assembled part is provided with a limit guide rail, the upper fast-assembled part is provided with a guide rail groove corresponding to the limit guide rail, and the limit guide rail is pushed into the guide rail groove to realize assembly and fixation during assembly. The elastic protruding points in the guide rail grooves are buckled in the limiting holes, so that the fixing can be stopped at the set position when the lower fast-assembling part is pushed into the upper fast-assembling part. Through setting up limit for width sand grip and limit for height lug be used for respectively about position and upper and lower position, avoided the lamp body because there is the problem of moving space and controlling or rocking from top to bottom, guaranteed the stability of installation. The electric connector comprises a socket female end and a socket male end, wherein the socket female end is arranged on the upper fast-assembling piece, the socket male end is correspondingly arranged on the lower fast-assembling piece, and when the lower fast-assembling piece and the upper fast-assembling piece are assembled together, the socket male end is inserted into the socket female end to form electric connection. In this scheme, adopt limit for height sand grip, limit for width sand grip and the elasticity bump in guide rail groove to realize fixed on the physical structure, adopt public female socket to realize electric connection, be difficult for not hard up in order to avoid contact failure and circuit trouble after public female socket electric connection requirement grafting, and above-mentioned physical fixed knot constructs and carries out spacing fixedly from upper and lower control front and back respectively, be unable completely to avoid clearance between the upper and lower fast-assembling spare, it is difficult to guarantee higher positioning accuracy, just so it is difficult to guarantee that public female socket's cooperation center and above-mentioned physical fixed knot constructs's cooperation center can keep the benchmark of complete unanimity, physical connection appears easily or one in the conductive connection appears stress concentration or becomes flexible and loses efficacy, if will improve the cooperation precision and lead to manufacturing cost increase a lot.

The patent document with publication number CN105180031 discloses a ceiling lamp, which comprises a lamp body, a lampshade, an LED lamp group, a lamp body hanging plate and a ceiling hanging plate, wherein the lamp body and the lampshade are arranged together, the LED lamp group is arranged in the lamp body, the lamp body hanging plate is arranged on the top surface of the lamp body, the ceiling hanging plate is arranged on the ceiling, and the lamp body hanging plate is provided with a conductive needle and a hanging groove; the ceiling hanging plate is provided with a chute for installing a conductive copper sheet and a slide fastener capable of being hooked in the chute; the lower end of the conductive needle is connected with the electric input end of the LED lamp group, and the upper end of the conductive needle slides into the chute and then is in contact connection with the conductive copper sheet in the chute; a slide fastener inserting hole for inserting the slide fastener and sliding the slide fastener to the hanging groove is formed in one side of the hanging groove of the lamp body hanging plate; the conductive copper sheet is connected with an external power transmission line. In this scheme, the lamp body articulates on the ceiling link plate, and conductive needle and conductive copper sheet contact connection because spout articulates structure is not firm easily not hard up enough, life is low, so leads to conductive needle and conductive copper sheet contact failure and circuit failure easily.

Disclosure of Invention

In order to solve the technical problems, the invention aims to provide the ceiling lamp, positioning and fixing in all directions are realized between the lamp body and the mounting seat through matching of the movable block and the jack, and the contact of the contact pin and the socket realizes conductive connection.

In order to achieve the above object, the present invention adopts the following technical scheme:

the ceiling lamp comprises a lamp body and a mounting seat (401) for being mounted on a ceiling or a supporting plate, wherein the lamp body comprises a lamp frame (101), a light-emitting component and a lamp body base (303), and the light-emitting component is mounted in a mounting space formed by the lamp frame (101) and the lamp body base (303); the lamp body is characterized in that a socket (402) and a positioning jack (4011) are arranged on the mounting seat (401), a movable block (302) and a contact pin (304) are arranged on the lamp body base (303), the lamp body and the mounting seat (401) are in plug-in fit with the movable block (302) and the positioning jack (4011) to realize detachable fixed connection, and the socket (402) and the contact pin (304) are in plug-in fit with each other to realize conductive connection.

Preferably, the light emitting component comprises a diffusion plate (203), a light guide plate (204), a reflecting layer (205), a foam layer (206), a back plate (207) and an annular lamp strip (202) surrounding the light guide plate (204), and the periphery of the light emitting component is surrounded by the lamp frame (101).

Preferably, the lamp frame (101) is an aluminum ring, and a heat radiation adhesive tape (201) is filled between the annular lamp strip (202) and the aluminum ring.

Preferably, a mounting groove (3031) for accommodating the mounting seat (401) is formed in the lamp body base (303), one side of the mounting groove is open, inserting tongue holes (3032) for the movable blocks (302) to extend out of the inserting tongues (3021) are formed in the left side wall and the right side wall opposite to the mounting groove, and pin holes (3033) for mounting the inserting pins (304) are formed in the side wall of the other side opposite to the opening of the mounting groove.

Preferably, an installation space (3035) is formed in the lamp body base (303), a loose piece box (3037) is formed on two sides of the installation space (3035) corresponding to the installation groove (3031) in a separated mode, and the loose piece (302) is installed in the loose piece box (3037) and covered by the cover plate (301).

Preferably, the front end of the movable block (302) is provided with an inserting tongue (3021), the front part of the inserting tongue (3021) is arc-shaped, side walls (3023) on the left side and the right side of the movable block (302) are arc-shaped, and a plurality of elastic pieces are arranged at the rear end of the movable block (302) and are abutted against the movable block box (3037) so as to promote the inserting tongue (3021) of the movable block (302) to extend out of an inserting tongue hole (3032) on the lamp body base (303) under the action of elastic force.

Preferably, a plurality of spring positioning columns (3022) are arranged at the rear part of the movable block (302), a plurality of spring embedding grooves (3038) corresponding to the spring positioning columns (3022) are arranged in the movable block box (3037), one end of a spring (3039) is connected with the spring positioning columns (3022), and the other end of the spring (3039) is connected with the spring embedding grooves (3038).

Preferably, the bottom surface and/or the top surface of the movable block (302) are provided with a plurality of convex ribs (3024), and the movable block (302) is in sliding contact with the lamp body base (303) and/or the cover plate (301) through the convex ribs.

As the preference, open on mount pad (401) and have location jack (4011), grafting through-hole (4012), mounting hole (4013) and electric wire perforation, mount pad (401) have with lamp body base (303) on mounting groove (3031) assorted location limit (4014), location jack (4011) are seted up on the lateral wall of mount pad (401) opposite both sides, grafting through-hole (4012) are seted up on the opposite side lateral wall of mount pad, the inside position that corresponds with grafting through-hole (4012) of mount pad is fixed with socket (402), a plurality of mounting holes (4013) are seted up at the top of mount pad, the mount pad passes through mounting hole (4013) and fastener fixed mounting on ceiling or backup pad.

Preferably, the length of the inserting tongue (3021) is larger than that of the positioning insertion hole (4011), and the inserting tongue (3021) is in plug-in fit with the positioning insertion hole (4011) through the arc-shaped front end of the inserting tongue when the inserting tongue (3021) is inserted into the positioning insertion hole (4011).

By adopting the scheme, the lamp body and the mounting seat are matched with each other through the movable block and the jack to realize positioning and fixing in all directions, and the contact pin and the socket are contacted to realize conductive connection, so that the lamp is fast in disassembly and assembly, convenient to use, long in service life, simple and reasonable in structure, convenient to manufacture, and firm and stable in fixing.

Drawings

Fig. 1 is a schematic diagram of an explosive structure of the present invention.

Fig. 2 is a schematic view of the structure of the lamp body.

Fig. 3 is a schematic structural view (top) of the mount.

Fig. 4 is a schematic structural view (bottom) of the mount.

Fig. 5 is a schematic view of the structure of the lamp body base.

Fig. 6 is a schematic view of the mounting structure of the loose piece.

Fig. 7 is a schematic view of the structure of the loose piece.

Fig. 8 is a schematic diagram of the mating structure of the loose piece and the socket of the mounting base.

Fig. 9 is a schematic view of an open configuration of the receptacle.

Fig. 10 is a schematic diagram of the mating of a pin and a socket (not plugged).

Fig. 11 is a schematic diagram of the mating (plugging) of pins and sockets.

Wherein reference numerals are as follows:

the lamp frame 101, the annular sheet 102, the heat radiation adhesive tape 201, the annular lamp strip 202, the diffusion plate 203, the light guide plate 204, the reflecting layer 205, the foam layer 206, the back plate 207, the cover plate 301,

the movable block 302, the insert tongue 3021, the spring positioning post 3022, the side wall 3023, the protruding rib 3024,

a lamp body base 303, a mounting slot 3031, a tongue insertion hole 3032, a pin insertion hole 3033, a clamping slot 3034, a mounting space 3035, a clamping hook portion 3036, a loose piece box 3037, a spring caulking slot 3038, a spring 3039,

the pin 304, the pin outer housing 3040, the pin inner housing 3041, the electrical connector 3042, the catch 3043, the contact 3044, the first resilient member 3045,

mounting block 401, positioning jack 4011, plug-in through hole 4012, mounting hole 4013, positioning edge 4014,

the socket 402, a socket housing 4020, a button 4021, a wiring hole 4022, a holding metal piece 4023, a fixing metal piece 4024, and a conductive contact piece 4025.

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", 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 invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

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 invention, unless otherwise specified, the meaning of "a plurality" is two or more, unless otherwise clearly defined.

In the present invention, 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 connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

A ceiling lamp as described in fig. 1, comprising a lamp body and a mounting block 401 for mounting on a ceiling or a support plate. The lamp body comprises a lamp frame 101, a light-emitting component and a lamp body base 303, wherein the light-emitting component is arranged in an installation space formed by the lamp frame 101 and the lamp body base 303. The mounting seat 401 is provided with a socket 402 and a positioning jack 4011, the lamp body base 303 is provided with a movable block 302 and a contact pin 304, the lamp body and the mounting seat 401 are in plug-in fit with the movable block 302 and the positioning jack 4011 to realize detachable fixed connection, and the socket 402 and the contact pin 304 are in plug-in fit with each other to realize conductive connection.

In this embodiment, the lamp frame 101 and the lamp body base 303 are fixedly connected by a buckle. In other embodiments, the two may be fixedly connected by a structure such as a fastener.

The light emitting component may be a conventional LED lamp panel structure or a conventional lamp tube structure, in this embodiment, the light emitting component is a surface light emitting structure with a light guide plate, and includes a diffusion plate 203, a light guide plate 204, a reflective layer 205, a foam layer 206, a back plate 207, and an annular light bar 202 surrounding the light guide plate 204, and the periphery of the light emitting component is surrounded by the lamp frame 101. The annular light bar 202 is formed by soldering LED chips on a flexible circuit board. In order to improve the heat dissipation performance of the annular light bar 202, the light frame 101 adopts an aluminum ring, and a heat dissipation adhesive tape 201 is filled between the annular light bar 202 and the aluminum ring, so that the aluminum ring can be used for heat dissipation. To increase the decorative effect, an annular sheet 102 (e.g., annular wood ring, metal ring, etc.) may be provided between the light emitting assembly and the bezel 101.

As shown in fig. 1 and 2, the lamp body base 303 is provided with a mounting groove 3031 for accommodating the mounting seat 401, one side of the mounting groove is open, two opposite side walls of the mounting groove are provided with a tongue insertion hole 3032 for the movable block 302 to extend out of the tongue 3021, and the other side wall of the mounting groove opposite to the opening is provided with a pin hole 3033 for mounting the pin 304. As shown in fig. 5 and 6, a mounting space 3035 is formed in the lamp body base 303, and a flapper box 3037 is formed at each side of the mounting space 3035 corresponding to the mounting groove 3031, and the flapper 302 is mounted in the flapper box 3037 and covered by the cover 301. The installation space 3035 is provided with a plurality of clamping grooves 3034 and clamping hook portions 3036 in the part space outside the movable block box so as to be convenient for installing parts such as a circuit board. As shown in fig. 6 and 7, the front end of the movable block 302 is provided with a tongue 3021, the front part of the tongue 3021 is arc-shaped, the side walls 3023 on the left and right sides of the movable block 302 are arc-shaped, and the rear end of the movable block 302 is provided with a plurality of elastic members which are abutted against the movable block box 3037 so as to promote the tongue 3021 of the movable block 302 to extend out of the tongue insertion hole 3032 on the lamp body base 303 under the action of elasticity. The movable block adopts an arc-shaped side wall, so that the movable block can slide under the action of elasticity and can swing and tilt in a certain range. The elastic member may be a spring, a spring piece, etc., in this embodiment, a plurality of springs 3039 are provided, the rear end of the movable block 302 is a hollow groove, a plurality of spring positioning posts 3022 are provided in the hollow groove, a plurality of spring caulking grooves 3038 corresponding to the spring positioning posts 3022 are provided in the movable block box 3037, one end of the spring 3039 is connected with the spring positioning posts 3022, and the other end of the spring 3039 is connected with the spring caulking grooves 3038. In order to facilitate guiding and limiting and/or smooth sliding, the bottom surface and/or the top surface of the movable block 302 are provided with a plurality of convex ribs 3024, and the movable block 302 is in sliding contact with the lamp body base 303 and/or the cover plate 301 through the convex ribs. In other embodiments, a plurality of rolling balls may be disposed on the bottom surface and/or the top surface of the movable block 302, and the movable block 302 may be in rolling contact with the lamp base 303 and/or the cover 301 through the rolling balls, so as to achieve flexible movement. Preferably, the lamp body base 303 and the movable block are plastic parts, and further preferably, the movable block is made of a smooth and wear-resistant material.

As shown in fig. 3 and 4, a positioning jack 4011, a plugging through hole 4012, mounting holes 4013 and wire through holes are formed in a mounting seat 401, the mounting seat 401 is provided with positioning edges 4014 matched with mounting grooves 3031 on a lamp body base 303, the positioning jack 4011 is formed in side walls on two opposite sides of the mounting seat 401, the plugging through hole 4012 is formed in the side wall on the other side of the mounting seat, a socket 402 is fixed in the mounting seat at a position corresponding to the plugging through hole 4012, a plurality of mounting holes 4013 are formed in the top of the mounting seat, and the mounting seat is fixedly mounted on a ceiling or a supporting plate through the mounting holes 4013 and fasteners. The mounting base may be a metal sheet metal part or a plastic part, so that in order to ensure smooth and wear-resistant contact between the loose piece insert tongue 3021 and the positioning insertion hole 4011, the positioning insertion hole 4011 may be subjected to smooth treatment, or a smooth wear-resistant coating or a smooth wear-resistant ferrule may be provided on the positioning insertion hole 4011.

As shown in fig. 8, the length of the insert tongue 3021 is longer than the length of the positioning insertion hole 4011, and the insert tongue 3021 is inserted into the positioning insertion hole 4011 through the arc-shaped front end thereof to be in plug-fit with the positioning insertion hole 4011, so that the insert tongue 3021 and the positioning insertion hole 4011 are in loose fit. The movable block can be automatically adjusted, positioned and locked when the movable block swings, and the movable block can be adaptively and repeatedly inserted or separated, so that the movable block is not in dead fit and is separated by external force. Moreover, the left and right movable blocks 302 can be always abutted against two sides of the mounting seat 401 under the action of elasticity, so that the phenomenon that the lamp body is loose and fixed relative to the mounting seat is avoided.

As shown in fig. 9, 10 and 11, the socket 402 includes a socket housing 4020, a clamping metal piece 4023 and a fixing metal piece 4024 are installed in the socket housing 4020, two wiring holes 4022 are formed in one end of the socket housing 4020, a socket for inserting a pin 304 is formed in the opposite end of the socket housing 4020, the clamping metal piece 4023 and the fixing metal piece 4024 are arranged at positions corresponding to the wiring holes 4022, the clamping metal piece 4023 is close to the fixing metal piece 4024 under the action of elasticity to clamp an electric wire, two conductive contact pieces 4025 are installed at positions corresponding to the socket, and the two conductive contact pieces 4025 are respectively connected with the two clamping metal pieces 4023 and/or the fixing metal pieces 4024 in a conductive mode. In this embodiment, the metal clip 4023 is a metal spring having a V-shaped opening for clipping the wire, and the metal spring is obliquely arranged along the insertion direction of the wire, so that when the wire is inserted between the metal clip 4023 and the fixed metal clip 4024 and is clamped by the V-shaped opening of the metal clip 4023, an external force must be applied to compress the metal clip to pull out the wire, thereby avoiding loosening the wire, and self-locking the wire without tools. In order to compress the metal spring, a button 4021 is mounted on the socket housing 4020, and two arms of the button 4021 extend through the fixing metal piece 4024 to press against the metal spring, so that the metal spring can be compressed outside the socket through the button 4021 to take out the electric wire. The conductive contact 4025, the fixing metal piece 4024 and the clamping metal piece 4023 are preferably made by punching and bending conductive metal sheets such as copper sheets, the conductive contact 4025 and the fixing metal piece 4024 are formed on the same conductive metal sheet, and the clamping metal piece 4023 is formed independently.

The pin 304 shown in fig. 10 and 11 comprises a pin inner housing 3041 and a pin outer housing 3040 which are fixed in an inner-outer fit manner, a contact 3044 is arranged at the front part of the pin inner housing 3041, the contact 3044 is in conductive connection with an electrical connector 3042, the front end of the contact 3044 extends out of a through hole at the front part of the pin outer housing 3040, and the electrical connector 3042 is fixed on the pin inner housing 3041. The contact 3044 is an elastic contact, and when the contact pin 304 is plugged into the socket 402, the elastic contact contacts the conductive contact 4025 and retracts to a certain extent, so that good contact is ensured by elastic potential storage, loose disconnection is not easy to occur, and good conductive contact can be ensured even if the contact pin and the socket generate plugging offset to a certain extent or are not in place. In this embodiment, the elasticity of the contact 3044 is provided by a compression spring 3045. The rear part of the contact pin 304 is provided with a clamping hook 3043, the contact pin 304 is inserted into the contact pin hole 3033 from the mounting groove 3031 on the lamp body base 303 and is in snap fit with the contact pin hole 3033 through the clamping hook 3043, so that when the contact pin 304 is plugged with the socket 402, the contact pin hole wall can prevent the contact pin from retreating so as to ensure firm plugging, meanwhile, the self-adaptive matching of the contact pin and the socket can be realized because of the certain movable range of snap connection, the reliable and firm plugging can be ensured, the precision requirements of manufacturing and assembly can be reduced, and the cost can be reduced.

During installation, the installation seat 401 is firstly installed and fixed on a ceiling or a supporting plate through a fastener, then an electric wire is inserted into a wiring hole 4022 of the socket 402, then the lamp body is inserted and sleeved on the installation seat 401 along the installation groove 3031, during insertion, the movable block is subjected to swinging and sliding, finally the inserting tongue on the movable block is reliably inserted into the positioning jack on the installation seat to realize fixed connection of the movable block and the installation seat, and the inserting needle is inserted into the socket to realize conductive connection, so that the installation of the ceiling lamp is completed. The movable block inserting tongue and the positioning jack are matched to realize fixed connection, so that the multi-direction and multi-angle positioning and continuous locking fixation are realized, and the self-adaption is good; the contact pin elastic plug is elastically abutted with the conductive metal piece on the socket to realize conductive connection, so that the contact is good, the loose disconnection is difficult, and meanwhile, the self-adaption is good, and the service life is long.

It should be noted that the above embodiments are merely representative examples of the present invention. Many variations of the invention are possible. Any simple modification, equivalent variation and modification of the above embodiments according to the principles of the present invention should be considered to fall within the scope of the present invention.

Claims

1. The ceiling lamp comprises a lamp body and a mounting seat (401) for being mounted on a ceiling or a supporting plate, wherein the lamp body comprises a lamp frame (101), a light-emitting component and a lamp body base (303), and the light-emitting component is mounted in a mounting space formed by the lamp frame (101) and the lamp body base (303); the lamp is characterized in that a socket (402) and a positioning jack (4011) are arranged on a mounting seat (401), a movable block (302) and a contact pin (304) are arranged on a lamp body base (303), the lamp body and the mounting seat (401) are in plug-in fit with the movable block (302) and the positioning jack (4011) to realize detachable fixed connection, and the socket (402) and the contact pin (304) are in plug-in fit with each other to realize conductive connection;

the front end of the movable block (302) is provided with an inserting tongue (3021), the front part of the inserting tongue (3021) is arc-shaped, side walls (3023) on the left side and the right side of the movable block (302) are arc-shaped, a plurality of elastic pieces are arranged at the rear end of the movable block (302) and are abutted against the movable block box (3037) so as to promote the inserting tongue (3021) of the movable block (302) to extend out of an inserting tongue hole (3032) on the lamp body base (303) under the action of elasticity;

a plurality of spring positioning columns (3022) are arranged at the rear part of the movable block (302), a plurality of spring caulking grooves (3038) corresponding to the spring positioning columns (3022) are arranged in the movable block box (3037), one end of a spring (3039) is connected with the spring positioning columns (3022), and the other end of the spring (3039) is connected with the spring caulking grooves (3038);

the length of the inserting tongue (3021) is larger than that of the positioning jack (4011), and the inserting tongue (3021) is in plug-in fit with the positioning jack (4011) through the arc-shaped front end of the inserting tongue when the inserting tongue (3021) is inserted into the positioning jack (4011).

2. The ceiling lamp according to claim 1, wherein the light emitting assembly comprises a diffusion plate (203), a light guide plate (204), a reflective layer (205), a foam layer (206), a back plate (207) and an annular light bar (202) surrounding the light guide plate (204), and the periphery of the light emitting assembly is surrounded by the lamp frame (101).

3. A ceiling lamp according to claim 1, characterized in that the lamp frame (101) is an aluminium ring, and a heat-dissipating adhesive strip (201) is filled between the annular lamp strip (202) and the aluminium ring.

4. The ceiling lamp according to claim 1, wherein the lamp body base (303) is provided with a mounting groove (3031) for accommodating the mounting seat (401), one side of the mounting groove is open, two opposite side walls of the mounting groove are provided with a tongue insertion hole (3032) for the movable block (302) to extend out of the tongue (3021), and the other side wall of the mounting groove opposite to the opening is provided with a pin hole (3033) for mounting the pin (304).

5. A ceiling lamp according to claim 1, wherein a mounting space (3035) is formed in the lamp body base (303), and a movable block box (3037) is formed in the mounting space (3035) at both sides corresponding to the mounting groove (3031), and the movable block (302) is mounted in the movable block box (3037) and covered by the cover plate (301).

6. A ceiling lamp according to claim 1, characterized in that the bottom and/or top surface of the movable block (302) is provided with a number of ribs (3024), by means of which the movable block (302) is in sliding contact with the lamp body base (303) and/or the cover plate (301).

7. The ceiling lamp according to claim 1, wherein the mounting base (401) is provided with a plugging through hole (4012), mounting holes (4013) and wire through holes, the mounting base (401) is provided with positioning edges (4014) matched with mounting grooves (3031) on the lamp body base (303), the positioning insertion holes (4011) are formed in side walls on two opposite sides of the mounting base (401), the plugging through hole (4012) is formed in the side wall on the other side of the mounting base, a socket (402) is fixed in the mounting base at a position corresponding to the plugging through hole (4012), a plurality of mounting holes (4013) are formed in the top of the mounting base, and the mounting base is fixedly mounted on a ceiling or a supporting plate through the mounting holes (4013) and fasteners.