CN213146236U - Mounting structure convenient to freely switch lamp body - Google Patents

Abstract

The utility model relates to an installation structure convenient for freely switching lamp bodies, which comprises a fixed base and a lamp body; the fixed base comprises a bottom shell, a first magnetic suction piece, a power supply board, a power supply cover board and a face cover which are sequentially arranged, wherein a through groove is formed in the power supply board at a position corresponding to the first magnetic suction piece, an annular positive pole and an annular negative pole are arranged on the power supply board in the circumferential direction of the through groove, the power supply cover board is provided with a cylindrical structure, a through hole is formed in the face cover, one side of the cylindrical structure is connected with the inner edge of the through hole, the other side of the cylindrical structure is abutted against the power supply board to form an inserting groove, and the first magnetic suction piece; the lamp body is provided with a second magnetic attraction piece matched with the first magnetic attraction piece, a first contact matched with the annular anode and a second contact matched with the annular cathode. This structure has realized that the magnetism of unable adjustment base and lamp body is inhaled and is connected, and has utilized the grafting recess to simplify the connection degree of difficulty, has realized plug-in connection between them, has improved the precision, and unable adjustment base's universality also obtains obviously improving simultaneously.

Description

Mounting structure convenient to freely switch lamp body

Technical Field

The utility model relates to the technical field of lamps and lanterns, in particular to mounting structure convenient to freely switch over lamp body.

Background

In modern life, lamps have gradually become indispensable electrical equipment in people's life. Most lamps and lanterns of selling at present are all installed to the base through the screw thread rotation or on the joint is connected to the base, and the rethread base realizes the fixed with the smallpox top, and the connected mode of this kind of spiro union or joint makes the installation degree of difficulty of lamps and lanterns and base great relatively, and the installation is comparatively loaded down with trivial details, and efficiency is lower to do not do benefit to and reduce the cost of labor. Moreover, the structures of the existing lamp and the base are usually matched with each other, the two structures are in one-to-one correspondence, and different lamps generally cannot share one base, that is, the base has poor universality, so that the correlation degree between the lamps with different functions is greatly reduced. This means that, once the lamp needs to be replaced, the base matched with the lamp needs to be installed again, which not only brings inconvenience to users, but also causes a certain waste of resources. Therefore, it is necessary to develop a mounting structure based on the magnetic attraction principle and facilitating the free switching of the lamp body.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects, the utility model provides an installation structure which is convenient for freely switching the lamp body, comprising a fixed base and a lamp body; the fixed base comprises a bottom shell, a first magnetic suction piece, a power panel, a power cover plate and a face cover which are sequentially arranged, wherein a through groove is formed in the power panel at a position corresponding to the first magnetic suction piece, an annular positive pole and an annular negative pole are arranged on the power panel in the circumferential direction of the through groove, the annular positive pole and the annular negative pole are respectively arranged coaxially with the through groove, a cylindrical structure corresponding to the position of the through groove is arranged on the power cover plate, a through hole corresponding to the position of the cylindrical structure is formed in the face cover, one side of the cylindrical structure is connected with the inner edge of the through hole, and the other side of the cylindrical structure is abutted against the power panel to form an inserting groove, so that the first magnetic suction piece, the annular positive; the lamp body is provided with a second magnetic attraction piece matched with the first magnetic attraction piece, and the lamp body is further provided with a first contact matched with the annular anode and a second contact matched with the annular cathode.

Furthermore, the bottom shell is internally provided with a fixed cylinder, a threaded hole is formed in the fixed cylinder, the first magnetic attraction piece is of an annular structure, and the first magnetic attraction piece is installed on the fixed cylinder through a screw.

Furthermore, the drain pan is equipped with at least one guide post with power strip edge corresponding position, and the inside threaded hole that opens of guide post, the power strip edge be equipped with guide post assorted U type groove, be equipped with on the power apron with guide post assorted via hole, the power apron is furnished with screw spare, screw spare passes via hole and U type groove and guide post looks spiro union to the realization is injectd the position of power strip.

Furthermore, a plurality of clamping blocks are arranged on the inner side of the face cover, clamping holes matched with the clamping blocks are formed in the power supply cover plate, and the face cover is clamped with the power supply cover plate through the clamping blocks.

Further, be equipped with two at least installation departments on the drain pan, set up threaded hole on the installation department, the screw hole is furnished with the double-screw bolt, the drain pan passes through the double-screw bolt to be fixed on the installation wall.

Further, the lamp body comprises a down lamp and a mounting seat, and the mounting seat is detachably arranged on one side of the down lamp opposite to the light emitting surface; the utility model discloses a down lamp, including the mounting pad, the mounting pad is fixed with down lamp, the mounting pad is including fixing base, circuit board, the top cap that sets gradually and be loop configuration's second magnetism, fixing base one side is fixed mutually with the down lamp, and the opposite side is equipped with the erection column, opens threaded hole in the erection column, the circuit board be equipped with erection column assorted mounting hole, the circuit board still is equipped with first contact and second contact in the mounting hole both sides, be equipped with on the top cap with erection column assorted through hole and with first contact, second contact assorted micropore, the mounting column passes mounting hole and through hole in proper order to inhale a looks fixed connection through double-screw bolt and second magnetism.

Further, the top cap is equipped with the mounting groove in one side of inhaling with the second magnetism and inhales a corresponding side, the mounting groove is inhaled a phase-match with the second magnetism, and the second magnetism is inhaled the piece setting in order to form the planform with the top cap in the mounting groove.

Further, be equipped with the spread groove of two relative settings on the down lamp, the fixing base is equipped with connecting portion with the corresponding position of spread groove, connecting portion one side links to each other with the fixing base, and the other side extends in the spread groove and rotates the setting with the spread groove.

Furthermore, the lamp body comprises a bottom box, a second magnetic suction piece, a power supply fixing plate, a diffusion plate and a decorative plate which are sequentially arranged, wherein an induction probe is arranged on one side of the power supply plate corresponding to the decorative plate, and the power supply fixing plate, the diffusion plate and the decorative plate are respectively provided with a through hole matched with the induction probe; the bottom box is provided with a fixing groove matched with the second magnetic suction piece, the bottom of the fixing groove is provided with a connecting column, a threaded hole is formed in the connecting column, the second magnetic suction piece is of an annular structure, and the second magnetic suction piece is connected with the connecting column through a fixing stud; and the power supply is provided with a first contact and a second contact on one side corresponding to the bottom box, and the bottom box is provided with a hole structure matched with the first contact and the second contact.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the utility model discloses a mounting structure convenient to freely switch over lamp body, this mounting structure is through setting up first magnetism on unable adjustment base and inhale the piece, sets up second magnetism on the lamp body and inhale the piece, has realized that magnetism between them is inhaled and is connected, has improved connection speed, has simplified the installation and has dismantled the degree of difficulty. And through set up tubular structure on the power apron, utilize the tubular structure and the cooperation between through-hole inward flange, the power strip to form the grafting recess to make first magnetism inhale piece, annular positive pole and annular negative pole and expose in grafting recess bottom, at the whole installation of lamp body, only need insert the lamp body in the grafting recess can realize both fixed in position and electric connection, not only improved the installation effectiveness, also do benefit to and improve both connection accuracy. In addition, through the fixed second magnetism piece of inhaling that sets up in the mount pad outside of down lamp to and set up the second magnetism piece of inhaling in the end box inboard of response lamp, make down lamp and response lamp can share a unable adjustment base, improved unable adjustment base's universality, make freely switching as required between two kinds of lamps and lanterns, strengthened the degree of correlation between two kinds of different function lamps and lanterns, avoided the wasting of resources, also promoted user's experience effect.

Drawings

Fig. 1 is a schematic view showing a connection relationship between components of a fixing base in embodiment 1.

Fig. 2 is a schematic view of a connection relationship among the bottom case, the first magnetic member, the power board, the power cover, and the cover in embodiment 1.

Fig. 3 is an assembly structure diagram of the bottom case, the first magnetic attraction member, and the power board in embodiment 1.

Fig. 4 is a schematic view of a connection relationship among the bottom case, the first magnetic member, the power board, the power cover, and the cover in embodiment 1.

Fig. 5 is a schematic view of the entire structure of the fixing base in embodiment 1.

Fig. 6 is a front view of the fixing base in embodiment 1.

Fig. 7 is a rear side view of the fixing base in embodiment 1.

Fig. 8 is a schematic view of a connection relationship between the down lamp and the mounting base in embodiment 1.

Fig. 9 is a schematic view of an assembly structure of the downlight and the mounting base in embodiment 1.

Fig. 10 is a sectional view of an assembly structure of the downlight and the mounting base in embodiment 1.

Fig. 11 is a schematic view of a connection relationship among the down lamp, the mount, and the fixing base in embodiment 1.

Fig. 12 is a schematic view of the internal structure of an induction lamp according to embodiment 1.

Fig. 13 is a rear view of the induction lamp of embodiment 1.

Reference numerals

1-fixed base, 11-bottom shell, 111-fixed column, 112-guide column, 113-clamping groove, 114-installation part, 12-first magnetic part, 13-screw, 14-power supply board, 141-through groove, 142-annular anode, 143-annular cathode, 144-U-shaped groove, 15-power supply cover board, 151-cylindrical structure, 152-via hole, 153-clamping hole, 154-screw part, 16-surface cover, 161-through hole, 2-lamp body, 21-down lamp, 22-installation seat, 221-fixed seat, 2211-installation column, 2212-connection part, 222-circuit board, 2221-installation hole 2222-first contact, 2223-second contact, 223-top cover, 2231-through hole, 2232-micropore, 2233-installing groove, 224-second magnetic attracting piece, 225-stud, 21 '-bottom box, 211' -fixing groove, 22 '-second magnetic attracting piece, 23' -power supply, 231 '-first contact, 232' -second contact, 24 '-power supply fixing plate, 25' -diffusion plate, 26 '-decorative plate and 27' -inductive probe.

The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for purposes of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced and do not represent actual dimensions; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted; the same or similar reference numerals correspond to the same or similar parts; the terms describing positional relationships in the drawings are for illustrative purposes only and are not to be construed as limiting the patent.

Detailed Description

The following detailed description of the preferred embodiments of the present invention is provided to enable those skilled in the art to more clearly understand the advantages and features of the present invention and to clearly define the scope of the present invention.

Example 1

As shown in fig. 1 to 11, the present embodiment provides a mounting structure for facilitating free switching of lamp bodies, including a fixed base 1 and a lamp body 2. The fixed base 1 comprises a bottom shell 11, a first magnetic part 12, a power board 14, a power cover 15 and a surface cover 16 which are arranged in sequence. The power panel 14 is provided with electrical components similar to those associated with the interior of the conventional conductive socket. In addition, the power board 14 is provided with a through groove 141 at a position corresponding to the first magnetic part 12, the through groove 141 is circular, the power board 14 is provided with an annular anode 142 and an annular cathode 143 in the circumferential direction of the through groove 141, the annular cathode 143 is disposed outside the annular anode 142, the annular anode 142 and the annular cathode 143 are respectively disposed coaxially with the through groove 141, that is, the central points of the through groove 141, the annular anode 142 and the annular cathode 143 are completely overlapped and the radius thereof increases, and a certain gap is provided between the annular anode 142 and the annular cathode 143 to avoid the occurrence of a short circuit phenomenon, as shown in fig. 1-7. In this embodiment, the annular positive electrode 142 and the annular negative electrode 143 are both formed by attaching a conductive material to the power supply board 14, and corresponding circuits are respectively designed on the lower surfaces of the annular positive electrode 142 and the annular negative electrode 143. The power cover 15 is provided with a cylindrical structure 151 corresponding to the through groove 141, and the inner diameter of the cylindrical structure 151 is larger than the diameter of the through groove 141. The face cover 16 is provided with a through hole 161 corresponding to the position of the cylindrical structure 151, and the diameter of the through hole 161 is consistent with that of the cylindrical structure 151. The through hole 161, the cylindrical structure 151 and the through groove 141 are coaxially arranged, the diameters of the cylindrical structure 151 and the through hole 161 are larger than the diameter of the through groove 141, and the diameters of the cylindrical structure 151 and the through hole 161 are larger than the outer diameters of the annular positive electrode 142 and the annular negative electrode 143. One side of the cylindrical structure 151 is connected to the inner edge of the through hole 161, and the other side is abutted against the power board 14 to form a socket groove, so that the first magnetic element 12, the annular positive electrode 142 and the annular negative electrode 143 are exposed at the bottom of the socket groove. The sidewall of the insertion groove is formed by the cylindrical structure 151, and the bottom of the insertion groove is the power panel 14 located inside the cylindrical structure 151. The lamp body 2 is provided with a protruding structure matched with the inserting groove, the protruding structure is provided with a second magnetic attraction piece matched with the first magnetic attraction piece 12, the second magnetic attraction piece can be magnetically attracted with the first magnetic attraction piece 12 to be connected, for example, the first magnetic attraction piece 12 is a magnet, and the second magnetic attraction piece is an iron block and the like. In addition, the lamp body 2 is provided with a first contact point on the protruding structure, which is matched with the annular positive electrode 142, and a second contact point, which is matched with the annular negative electrode 143. After the convex structure of the lamp body 2 is inserted into the insertion groove, the second magnetic attraction piece on the convex structure is combined with the first magnetic attraction piece 12 in the insertion groove, so that the lamp body 2 and the fixing base 1 are fixed. Meanwhile, the first contact and the second contact on the protrusion structure are respectively in contact with the annular anode 142 and the annular cathode 143 at the bottom of the insertion groove, so that electrical connection is realized.

Preferably, as shown in fig. 1 and 2, a fixing cylinder 111 is provided inside the bottom case 11, the fixing cylinder 111 is provided in a middle region of the bottom case 11, and a plurality of reinforcing plates are provided around the fixing cylinder 111 and are uniformly provided around the fixing cylinder 111. The fixed cylinder 111 is provided with a threaded hole therein, the threaded hole and the fixed cylinder 111 are coaxially arranged, and the opening direction of the threaded hole is arranged on one side of the first magnetic attraction piece 12. The first magnetic attraction piece 12 is of an annular structure, the inner diameter of a central hole of the annular structure is matched with the threaded hole, and the first magnetic attraction piece 12 is mounted on the fixing column 111 through a screw 13, that is, the screw 13 penetrates through the central hole of the annular structure to be screwed with the threaded hole, so that the first magnetic attraction piece 12 is fixedly mounted inside the bottom shell 11. Of course, the first magnetic element 12 can also be fixedly installed in the bottom case 11 by clamping, bonding, or other methods, which is not limited herein.

Preferably, as shown in fig. 1 and 2, the bottom case 11 is provided with at least one guiding post 112 at a position corresponding to the edge of the power supply board 14, and the guiding post 112 is internally provided with a threaded hole. The edge of the power panel 14 is provided with a U-shaped groove 144 matching with the guiding column 112, and the opening of the U-shaped groove 144 is arranged at the outward side, that is, the edge of the power panel 14 is provided with a notch matching with the guiding column 112. The power cover 15 is provided with a via hole 152 matching with the guide post 112, and the inner diameter of the via hole 152 matches with the outer diameter of the guide post 112. The power cover 15 is further provided with a screw 154, and the screw 154 is screwed with the guide post 112 through the through hole of the power cover 15 and the U-shaped groove 144 on the power board 14 to achieve the position limitation of the power board 14. In this embodiment, two guiding pillars 112 are disposed on the bottom case 11, and the two guiding pillars 112 are disposed oppositely, that is, the two guiding pillars 112 correspond to two opposite sides of the power board 14 respectively. In other words, the power panel 14 is disposed between the two guide posts 112, so that unstable situations such as shaking of the power panel 14 during use are avoided, and normal use of the lamp body is prevented from being affected.

Preferably, the bottom case 11 is provided with a plurality of clamping grooves 113, the plurality of clamping grooves 113 are uniformly arranged along the circumferential direction of the bottom case 11, the face cover 16 is provided with clamping blocks matched with the clamping grooves 113, and the face cover 16 is fixedly clamped with the bottom case 11 to form an accommodating space. Of course, a plurality of locking blocks may be directly disposed on the inner side of the surface cover 16, that is, the locking blocks are disposed on one side of the surface cover 16 corresponding to the bottom case 11, meanwhile, the power cover 15 is disposed with locking holes 153 matching with the locking blocks, and the locking blocks and the locking holes 153 are used to fix the surface cover 16. The mounting manner of the face cover 16 may be one or a combination of two of the above connection manners, which is not limited herein.

Preferably, as shown in fig. 1 and 2, the bottom case 11 is provided with at least two mounting portions 114. In this embodiment, the number of the mounting portions 114 is two, two mounting portions 114 are disposed on one side without the guide posts 112, that is, the two mounting portions 114 are disposed at intervals with the two guide posts 112, and the power panel 14 and the power cover 15 are respectively provided with notch structures corresponding to the positions of the mounting portions 114. Threaded holes are formed in the mounting portion 114 and penetrate through the two sides of the mounting portion 114, threaded holes are provided with threaded studs, matched threaded holes are formed in the mounting wall face, the threaded studs penetrate through the threaded holes of the mounting portion 114 and are connected with threaded holes in the mounting wall face, and the bottom shell 11 is fixedly arranged on the mounting wall face. Certainly, in a specific use process, the electrical standard 86 box may be fixed on the installation wall surface, and then the stud penetrates through the threaded hole to fix the bottom case 11 on the electrical standard 86 box, so as to realize the fixed connection between the bottom case 11 and the installation wall surface.

Preferably, as shown in fig. 8 to 11, the lamp body 2 includes a down lamp 21 and a mount 22. The mounting seat 22 is detachably disposed on a side of the down lamp 21 opposite to the light emitting surface. The mounting seat 22 includes a fixing seat 221, a circuit board 222, a top cover 223 and a second magnetic member 224 in an annular structure. Fixing base 221 one side is fixed mutually with down lamp 21, and the opposite side is equipped with erection column 2211, and erection column 2211 is located the central zone of fixing base 221, evenly is equipped with a plurality of enhancement strips around erection column 2211, and the inside screw hole that opens of erection column 2211. The circuit board 222 is provided with a mounting hole 2221 matched with the mounting post 2211, and the circuit board 222 is further provided with a first contact 2222 matched with the annular positive electrode 142 and a second contact 2223 matched with the annular negative electrode 143. The first contact 2222 and the second contact 2223 are disposed on the opposite side of the circuit board 222 from the fixing base 221, and the first contact 2222 and the second contact 2223 are disposed around the mounting hole 2221. The top cover 223 is provided with a through hole 2231 matching with the mounting post 2211, i.e. the through hole 2231, the mounting hole 2221 and the mounting post 2211 are coaxially arranged. In addition, the top cover 223 is further provided with a first micro hole corresponding to the position of the first contact 2222 and a second micro hole corresponding to the position of the second contact 2223, and the first contact 2222 and the second contact 2223 can respectively pass through the first micro hole and the second micro hole to be abutted against the annular positive electrode 142 and the annular negative electrode 143. In the assembled configuration, the mounting post 2211 passes through the mounting hole 2221 and the through hole 2231 in sequence, and is fixedly connected to the second magnetic member 224 by the stud 225. In other words, the stud 225 passes through the second magnetic member 224, the through hole 2231 and the mounting hole 2221 of the ring structure in sequence to engage with the threaded hole in the mounting post 2211 to form the mounting seat 22. In the specific use process, because the mounting seat 22 is matched with the insertion groove, the mounting seat 22 can be directly inserted into the insertion groove, and the position fixation of the mounting seat 22 and the fixed base 1 can be realized.

Preferably, as shown in fig. 8, the top cover 223 is provided with a mounting groove 2233 at a side corresponding to the second magnetic member 224, the mounting groove 2233 is matched with the second magnetic member 224, and the second magnetic member 224 is disposed in the mounting groove 2233 to form a flat surface with the top cover 223, so as to improve the mounting stability of the second magnetic member 224 and improve the aesthetic property of the lamp body 2.

As preferred, two connecting grooves have been seted up on the lateral wall of down lamp 21, and two connecting grooves set up along down lamp 21 axis relatively, and two connecting grooves evenly set up along down lamp 21 circumference promptly, fixing base 221 is equipped with connecting portion 2212 with the corresponding position of connecting groove, connecting portion 2212 one side links to each other with fixing base 221, and the other side extends to in the connecting groove and rotates the setting with the connecting groove. In this embodiment, a connection screw is disposed in the connection groove, circular holes are respectively formed in the side wall of the down lamp 21 at positions corresponding to the two ends of the connection screw, nut mounting seats are respectively provided at positions corresponding to the two ends of the connection screw outside the down lamp 21, nuts are disposed on the nut mounting seats, and the two ends of the connection screw extend out of the down lamp 21 through the circular holes and are connected with the nuts. The screw hole has been seted up with the corresponding one end of spread groove to connecting portion 2212, connecting portion 2212 rotates the setting through connecting screw and spread groove. Of course, the connecting portion 2212 can also be rotatably connected with the connecting slot by a rotating shaft in the prior art, and is not limited herein.

Preferably, as shown in fig. 12-13, the lamp body 2 is an induction lamp, and includes a bottom case 21 ', a second magnetic element 22 ', a power supply 23 ', a power supply fixing plate 24 ', a diffusion plate 25 ', and a decoration plate 26 ', which are sequentially disposed, wherein an induction probe 27 ' is installed on one side of the power supply plate 23 ' corresponding to the decoration plate 26 ', and the power supply fixing plate 24 ', the diffusion plate 25 ', and the decoration plate 26 ' are respectively provided with through holes matching with the induction probe 27 '. The bottom case 21 'is provided with a fixing groove 211' matched with the second magnetic part 22 ', and the bottom of the fixing groove 211' is arranged on the side of the bottom case 21 'opposite to the power supply 23'. The bottom of the fixing groove 211 ' is provided with a connecting column, the connecting column is located in the central area of the bottom of the fixing groove 211 ', a threaded hole is formed in the connecting column, and the opening end of the threaded hole is arranged on one side corresponding to the second magnetic suction piece 22 '. The second magnetic part 22 'is a ring structure, and the second magnetic part 22' is connected with the connecting column through a fixing stud. And the power supply 23 ' is provided with a first contact 231 ' and a second contact 232 ' on the side corresponding to the bottom case 21 ', the bottom case 21 ' is provided with a hole structure matched with the first contact 231 ' and the second contact 232 ', and the first contact 231 ' and the second contact 232 ' are respectively abutted with the annular anode 142 and the annular cathode 143 through the hole structure to realize electrical connection.

In a specific using process, the installation seat 22 arranged on the down lamp 21 can be directly inserted into the insertion groove of the fixing base 1 to realize magnetic connection between the down lamp 21 and the fixing base 1, and meanwhile, the first contact 2222 and the second contact 2223 arranged on the installation seat 22 are in contact with the annular positive electrode 142 and the annular negative electrode 143 arranged at the bottom of the insertion groove to realize electrical connection. Of course, the outer side of the fixing groove 211 ' of the bottom case 21 ' of the induction lamp can be directly inserted into the inserting groove of the fixing base 1 to realize the magnetic attraction connection between the induction lamp and the fixing base 1, and meanwhile, the first contact 231 ' and the second contact 232 ' arranged on the bottom case 21 ' of the induction lamp are in contact with the annular anode 142 and the annular cathode 143 arranged at the bottom of the inserting groove to realize the electrical connection. Whole change process easy operation is quick, and efficiency is higher, has improved unable adjustment base 1's universality moreover, has realized freely switching of two kinds of lamp body structures of down lamp and response lamp, does not do benefit to satisfy the user and need not use the demand, provides very big facility for the user uses.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (9)

1. A mounting structure convenient for freely switching lamp bodies is characterized by comprising a fixed base and a lamp body; the fixed base comprises a bottom shell, a first magnetic suction piece, a power panel, a power cover plate and a face cover which are sequentially arranged, wherein a through groove is formed in the power panel at a position corresponding to the first magnetic suction piece, an annular positive pole and an annular negative pole are arranged on the power panel in the circumferential direction of the through groove, the annular positive pole and the annular negative pole are respectively arranged coaxially with the through groove, a cylindrical structure corresponding to the position of the through groove is arranged on the power cover plate, a through hole corresponding to the position of the cylindrical structure is formed in the face cover, one side of the cylindrical structure is connected with the inner edge of the through hole, and the other side of the cylindrical structure is abutted against the power panel to form an inserting groove, so that the first magnetic suction piece, the annular positive; the lamp body is provided with a second magnetic attraction piece matched with the first magnetic attraction piece, and the lamp body is further provided with a first contact matched with the annular anode and a second contact matched with the annular cathode.

2. The mounting structure for freely switching the lamp bodies according to claim 1, wherein a fixing post is disposed inside the bottom housing, a threaded hole is formed in the fixing post, the first magnetic attraction member is of a ring structure, and the first magnetic attraction member is mounted on the fixing post by a screw.

3. The mounting structure for a lamp body capable of being freely switched according to claim 1, wherein the bottom case has at least one guiding post at a position corresponding to an edge of the power board, the guiding post has a threaded hole therein, the edge of the power board has a U-shaped groove matching with the guiding post, the power cover has a through hole matching with the guiding post, the power cover has a screw member, and the screw member is screwed with the guiding post through the through hole and the U-shaped groove to achieve the position limitation of the power board.

4. The mounting structure for freely switching lamp bodies as claimed in claim 3, wherein the inner side of the surface cover is provided with a plurality of locking blocks, the power cover plate is provided with locking holes matching with the locking blocks, and the surface cover is locked with the power cover plate through the locking blocks.

5. The mounting structure for freely switching the lamp bodies as claimed in claim 1, wherein the bottom shell has at least two mounting portions, the mounting portions have threaded holes, the threaded holes are provided with studs, and the bottom shell is fixed on a mounting wall surface by the studs.

6. The mounting structure convenient for freely switching the lamp bodies as claimed in claim 1, wherein the lamp body comprises a down lamp and a mounting seat, the mounting seat is detachably disposed on the side of the down lamp opposite to the light-emitting surface; the utility model discloses a down lamp, including the mounting pad, the mounting pad is fixed with down lamp, the mounting pad is including fixing base, circuit board, the top cap that sets gradually and be loop configuration's second magnetism, fixing base one side is fixed mutually with the down lamp, and the opposite side is equipped with the erection column, opens threaded hole in the erection column, the circuit board be equipped with erection column assorted mounting hole, the circuit board still is equipped with first contact and second contact in the mounting hole both sides, be equipped with on the top cap with erection column assorted through hole and with first contact, second contact assorted micropore, the mounting column passes mounting hole and through hole in proper order to inhale a looks fixed connection through double-screw bolt and second magnetism.

7. The mounting structure for freely switching the lamp bodies according to claim 6, wherein the top cover has a mounting groove corresponding to the second magnetic member, the mounting groove is matched with the second magnetic member, and the second magnetic member is disposed in the mounting groove to form a flat surface with the top cover.

8. The mounting structure for freely switching the lamp bodies as claimed in claim 7, wherein the down lamp has two opposite connecting slots, the fixing base has a connecting portion at a position corresponding to the connecting slots, one side of the connecting portion is connected to the fixing base, and the other side of the connecting portion extends into the connecting slots and is rotatably disposed with the connecting slots.

9. The mounting structure for a lamp body convenient to freely switch as claimed in claim 1, wherein the lamp body comprises a bottom case, a second magnetic member, a power supply fixing plate, a diffusion plate and a decoration plate which are sequentially arranged, wherein the power supply plate is provided with an inductive probe at a side corresponding to the decoration plate, and the power supply fixing plate, the diffusion plate and the decoration plate are respectively provided with a through hole matched with the inductive probe; the bottom box is provided with a fixing groove matched with the second magnetic suction piece, the bottom of the fixing groove is provided with a connecting column, a threaded hole is formed in the connecting column, the second magnetic suction piece is of an annular structure, and the second magnetic suction piece is connected with the connecting column through a fixing stud; and the power supply is provided with a first contact and a second contact on one side corresponding to the bottom box, and the bottom box is provided with a hole structure matched with the first contact and the second contact.

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