A lamp holder assembly and a pendant lamp

Abstract

This invention relates to a lamp holder assembly and a chandelier. The lamp holder assembly includes a track and a lamp holder. The lamp holder is provided with a light-emitting element and a clip for connecting to the track. The clip is fitted onto the track, allowing the lamp holder to be movably positioned on the track. The track is provided with positive and negative electrical grooves. The clip also contains positive and negative contact pieces that are inserted into the positive and negative electrical grooves during connection. The positive and negative contact pieces are electrically connected to the light-emitting element to form a circuit. The lamp holder is directly connected to the track through the clip. This not only reduces the number of parts used but also facilitates the connection between the lamp holder and the track. Installation is simple, convenient, and secure. Furthermore, the positive and negative contact pieces are located within the clip. When the positive and negative contact pieces are inserted into the positive and negative electrical grooves, the light-emitting element can be electrically connected to the track through the positive and negative contact pieces without the need for multiple conversion connections. The connection is secure and has excellent contact, effectively avoiding poor contact. The clip also protects the positive and negative contact pieces from external impacts and collisions, facilitating transportation and transfer.

Description

Technical Field

[0001] This invention relates to the field of lighting technology, and in particular to a lamp holder assembly and a chandelier. Background Technology

[0002] Track lights are commonly used light fixture components in shopping malls, exhibition halls, etc. However, existing track lights have relatively complex structures and are inconvenient to install and disassemble.

[0003] To address this, utility model patent CN202303122U discloses a track light, including a control box, a track, spotlights, and sliding connectors or connecting wires. The control box is fixed to one end of the track, and the control box and track are integrated. A track slot is provided inside the track, and a PCB board is inserted into the track slot. The PCB board is provided with electrode strips. The track can be connected into multiple track sections by the track sliding connectors or connecting wires. The track is integrated with the track and is provided with a slide rail. The sliding connectors or connecting wires are provided with slide grooves and are installed on the slide rails through the slide grooves. A battery is installed inside the spotlight. When there is a mains power supply, the battery is charged. When the mains power is disconnected, the battery provides power for lighting and can be used as an emergency light. The integrated and separate design structure allows the spotlights to be easily removed from and installed on the track, making the track light structure of this invention simple, easy to disassemble and assemble, and easy to maintain, providing great convenience to users.

[0004] The aforementioned patent has the following problems: the spotlight needs to be connected to the track via a sliding connector, which involves many parts, making installation cumbersome and prone to instability. Furthermore, the spotlight needs to be connected to the track's electrode strip via the elastic conductive contacts of the sliding connector, resulting in multiple connection steps. These multiple connections can lead to poor contact of the elastic conductive contacts, causing leakage, electric shock, and even dangerous situations such as overheating and fire. Additionally, the placement of the elastic conductive contacts at both ends of the curved connector makes them prone to... This makes the elastic conductive contacts extremely prone to deformation and breakage, increasing the cost of use.

[0005] Therefore, existing technology cannot meet our needs. Summary of the Invention

[0006] To address the aforementioned problems, the present invention provides a lamp holder assembly that is easy to install and a chandelier using the lamp holder assembly.

[0007] To achieve the above objectives, the present invention provides the following technical solution: A lamp head assembly includes a track and a lamp head detachably connected to the track. The lamp head is provided with a light-emitting element and a buckle for connecting to the track. The buckle is sleeved on the track, allowing the lamp head to be movably positioned on the track. The track is provided with positive and negative electrical grooves. The buckle is also provided with positive and negative electrical contacts that are inserted into the positive and negative electrical grooves during connection. The positive and negative electrical contacts are electrically connected to the light-emitting element.

[0008] As a preferred embodiment, it is further defined as follows: the positive and negative contact plates are provided with two oppositely arranged end faces, and a first contact terminal and a second contact terminal are respectively provided on the end faces, and a conductor is provided in the track that is electrically connected to the first contact terminal and the second contact terminal respectively.

[0009] As a preferred embodiment, it is further defined as follows: the buckle (2) is provided with a slot and an opening for the track to be inserted, and the positive and negative contact pieces are fixed in the slot.

[0010] As a preferred embodiment, the track is further defined as follows: the track includes a profile and an insulator disposed within the profile, and the conductor is disposed within the insulator.

[0011] As a preferred embodiment, it is further defined as follows: the positive and negative electric grooves are disposed in the insulator, and the two conductors are respectively disposed on both sides of the positive and negative electric grooves.

[0012] As a preferred embodiment, it is further defined as follows: the profile is also provided with a positioning groove, and the slot is also provided with a positioning strip inserted into the positioning groove during assembly.

[0013] As a preferred embodiment, it is further defined as follows: the lamp head includes a lampshade and a connecting post disposed inside the lampshade, and the light-emitting body includes a first light source disposed on the outer periphery of the connecting post and a second light source disposed at the lower end of the connecting post.

[0014] As a preferred embodiment, it is further defined as follows: a constant current module is also provided inside the lamp holder, the input terminal of the constant current module is electrically connected to the positive and negative terminals, and the output terminal of the constant current module is electrically connected to the light-emitting element.

[0015] As a preferred embodiment, it is further defined that: the lampshade is also provided with a lens located at the lower end of the second light source.

[0016] A chandelier, comprising: sling; The lamp head assembly; the suspension rope is fixedly connected to the track; the lamp head is detachably connected to the track, the lamp head is provided with a light-emitting element and a buckle for connecting with the track, the buckle is sleeved on the track so that the lamp head is movably mounted on the track, the track is provided with positive and negative electrical grooves, and the buckle is also provided with positive and negative electrical contacts that are inserted into the positive and negative electrical grooves during connection, and the positive and negative electrical contacts are electrically connected to the light-emitting element.

[0017] The beneficial effects of this invention are as follows: The lamp head of this invention is directly connected to the track via the snap-fit, which not only reduces the use of parts but also facilitates the connection between the lamp head and the track. Installation is simple, convenient, and secure. Simultaneously, the positive and negative contact pieces are positioned between the two snap-fit ​​pieces. When the positive and negative contact pieces are inserted into the positive and negative contact slots, the light-emitting element can be electrically connected to the track via the positive and negative contact pieces without the need for multiple conversion connections. The connection is secure and has excellent contact, effectively preventing poor contact. Furthermore, the snap-fit ​​pieces can protect the positive and negative contact pieces from external impacts and collisions, facilitating transportation and transfer. Attached Figure Description

[0018] Figure 1 This is a structural diagram of the lamp holder assembly; Figure 2 This is one of the exploded views of the lamp holder assembly; Figure 3 This is the second exploded view of the lamp holder assembly; Figure 4 This is a cross-sectional view of the lamp holder assembly; Figure 5 yes Figure 4 Enlarged diagram of A in the middle; Figure 6 This is one of the structural diagrams of the buckle; Figure 7 This is the second schematic diagram of the buckle structure; Figure 8 This is one of the structural schematic diagrams of positive and negative terminals; Figure 9 This is the second schematic diagram of the positive and negative terminals; Figure 10 This is a structural diagram of the profile; Figure 11 It is an exploded diagram of an insulator; Figure 12 This is a structural diagram of a chandelier. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments: As attached Figure 1 To be continued Figure 11As shown, a lamp head assembly includes a track 100 and a lamp head 200 detachably connected to the track 100. The lamp head 200 is provided with a light-emitting element 300 and a buckle 2 for connecting to the track 100. The buckle 2 is sleeved on the track 100, allowing the lamp head 200 to be movably mounted on the track 100. The track 100 is provided with positive and negative electrical grooves 11. The buckle 2 is also provided with positive and negative contact pieces 3 that are inserted into the positive and negative electrical grooves 11 during connection. The positive and negative contact pieces 3 are electrically connected to the light-emitting element 300. The lamp head 200 is directly connected to the track 100 via the buckle 2. This not only reduces the number of parts used but also facilitates the connection between the lamp head 200 and the track 100, making installation simple, convenient, and secure. Simultaneously, the positive and negative contact pieces 3 are located within the buckle 2. When the positive and negative contact pieces 3 are inserted into the positive and negative contact slots 11, the light-emitting element 300 can be electrically connected to the track 100 via the positive and negative contact pieces 3, eliminating the need for multiple conversion connections. This ensures a secure connection and excellent contact, effectively preventing poor contact. Furthermore, the buckle 2 protects the positive and negative contact pieces 3 from external impacts and collisions, facilitating transportation and relocation.

[0020] As attached Figure 2 To be continued Figure 5 and attached Figure 8 To be continued Figure 9 As shown, in this embodiment, the positive and negative contact pieces 3 are provided with two oppositely arranged end faces 30. A first contact terminal 31 and a second contact terminal 32 are respectively provided on the end faces 30. Conductors 12, which are electrically connected to the first contact terminal 31 and the second contact terminal 32, are provided within the track 100. The first contact terminal 31 and the second contact terminal 32 are directly disposed on the two end faces 30 of the positive and negative contact pieces 3. Compared to the elastic conductive contacts of the prior art, the positive and negative contact pieces 3 have higher strength, effectively preventing deformation, and providing a firm connection and excellent contact. This prevents the positive and negative contact pieces 3 from being subjected to external collisions or impacts, facilitating transportation and transfer.

[0021] Furthermore, the positive and negative contact plates 3 can be configured as a PCB board, while the first contact terminal 31 and the second contact terminal 32 can be soldered on the PCB board or metal wiring printed on the PCB board.

[0022] As attached Figure 2 To be continued Figure 10As shown, in this embodiment, the buckle 2 is provided with a slot 22 and an opening 23 for the track 100 to be inserted into. The positive and negative contact pieces 3 are fixed in the slot 22. More specifically, the buckle 2 is symmetrically provided with contact pieces, and the slot 22 and the opening 23 are formed between the two contact pieces. The lamp head 200 is detachably connected to the track 100, and the lamp head 200 can be added and removed at any time according to the actual situation. The positive and negative contact pieces 3 are fixed in the slot 22, and the contact pieces can protect the positive and negative contact pieces 3 from collisions and impacts from external forces, facilitating transportation and transfer.

[0023] Furthermore, the track 100 is cylindrical, and the corresponding slot 22 is also circular, allowing the lamp head 200 to slide freely on the track 100 and be positioned at any location. This facilitates adjustment of the lamp head 200 without the need to remove it and reinstall it in a suitable position, making adjustment simple and quick and improving the user experience.

[0024] As attached Figure 2 To be continued Figure 11 As shown, in this embodiment, the track 100 includes a profile 4 and an insulator 5 disposed within the profile 4, with the conductor 12 disposed within the insulator 5. The insulator 5 can enclose the charged conductor 12. Compared to the prior art where the electrode strip is placed on a PCB board and the PCB board is directly mounted within the track, the prior art does not provide an insulator to isolate the electrode strip, allowing current to easily leak into the track. Furthermore, the electrode strip is exposed, making direct contact with it highly likely to cause electric shock, affecting the user's personal safety and property. In this embodiment, the insulator 5 enclosing the charged conductor 12 effectively prevents leakage and electric shock. The positive and negative electrical grooves 11 are disposed within the insulator 5, with the two conductors 12 respectively disposed on both sides of the positive and negative electrical grooves 11. The conductors 12 and the positive and negative contact pieces 3 are connected by an interference fit, ensuring a strong connection and excellent contact between them.

[0025] Furthermore, the insulator 5 includes a first insulating part 51 and a second insulating part 52. The first insulating part 51 is provided with a positioning protrusion 511, and the second insulating part 52 is provided with a positioning groove 521. During assembly, the positioning protrusion 511 is inserted into the positioning groove 521. The profile 4 is also provided with an opening for the positive and negative contact pieces 3 to pass through. The opening of the profile 4, together with the side wall of the first insulating part 51, the side wall of the second insulating part 52, and the positioning protrusion 511, forms the positive and negative contact groove 11, which facilitates the disassembly, assembly, and replacement of the insulator. At the same time, the first insulating part 51, the second insulating part 52, and the profile 4 are also provided with other positioning blocks and positioning strips to facilitate the formation of the positive and negative contact groove 11 and to facilitate the connection of the lamp holder 200 to power.

[0026] As attached Figure 2 To be continued Figure 11 As shown, in this embodiment, the profile 4 is further provided with a positioning groove 42, and the slot 22 is further provided with a positioning strip 24 inserted into the positioning groove 42 during assembly. When the positioning strip 24 is inserted into the positioning groove 42 after assembly, it can not only fix the lamp head 200 circumferentially and prevent the lamp head 200 from rotating around the track 100, effectively preventing the positive and negative contact pieces 3 from deforming or breaking due to the rotation of the lamp head 200, and avoiding poor contact between the positive and negative contact pieces 3 and the conductor 12, but also the cooperation of the positioning groove 42 and the positioning strip 24 can guide the lamp head 200 when it slides freely on the track 100, making it convenient for the lamp head 200 to be positioned at any position, and convenient for adjusting the lamp head 200 without having to remove the lamp head 200 and reinstall it in a suitable position. The adjustment is simple and quick, improving the user experience.

[0027] As attached Figure 2 To be continued Figure 11 As shown, in this embodiment, the lamp head 200 includes a lampshade 6 and a connecting post 60 disposed within the lampshade 6. The light-emitting body 300 includes a first light source 61 disposed on the outer periphery of the connecting post 60 and a second light source 62 disposed at the lower end of the connecting post 60. A lens 7 is also disposed on the lampshade 6 at the lower end of the second light source 62. The first light source 61 is disposed around the outer periphery of the connecting post 60, so that the first light source 61 illuminates the lampshade 6 uniformly. Furthermore, the lampshade 6 is made of glass, ensuring that the light illuminating the ceiling and walls is free of clutter and overlapping shadows, with sharp, clean light edges, forming soft light that enhances the ambient atmosphere and the lighting decoration effect of the lamp head assembly. Moreover, the second light source 62 illuminates the ground and tabletop through the lens 7. These two light-emitting methods allow for adjustment of illuminance and luminous efficacy according to actual conditions, meeting the needs of focused lighting and providing concentrated illumination to key objects.

[0028] As attached Figure 2 To be continued Figure 11 As shown, in this embodiment, a constant current module is also provided inside the lamp head 200. The input terminal of the constant current module is electrically connected to the positive and negative terminals 3, and the output terminal of the constant current module is electrically connected to the light-emitting element 300. Furthermore, the track 100 adopts a constant voltage method, so the electricity, after passing through the constant current module, supplies power to the light-emitting element 300 in a constant current manner. This facilitates adjustment of the illuminance of the light-emitting element 300, regardless of the type or distance of the lamp head components. The illuminance can be adjusted independently by the control circuit to achieve adjustment of the light spot size, thereby adjusting the lighting effect.

[0029] As attached Figure 1 To be continued Figure 12 As shown, a chandelier includes: 8 ropes; Lamp head assembly; the suspension rope 8 is fixedly connected to the track 100; the lamp head 200 is detachably connected to the track 100, the lamp head 200 is provided with a light-emitting element 300 and a buckle 2 for connecting with the track 100, the buckle 2 is sleeved on the track 100 so that the lamp head 200 is movably mounted on the track 100, the track 100 is provided with positive and negative electrical grooves 11, and the buckle 2 is also provided with positive and negative electrical contacts 3 inserted into the positive and negative electrical grooves 11 during connection, the positive and negative electrical contacts 3 being electrically connected to the light-emitting element 300. The lamp head 200 is directly connected to the track 100 via the clip 2. This not only reduces the number of parts used but also facilitates the connection between the lamp head 200 and the track 100, making installation simple, convenient, and secure. Simultaneously, the positive and negative contact pieces 3 are positioned between the two clips. When the positive and negative contact pieces 3 are inserted into the positive and negative slots 11, the light-emitting element 300 can be electrically connected to the track 100 via the positive and negative contact pieces 3, eliminating the need for multiple conversion connections. The connection is secure and has excellent contact, effectively preventing poor contact. Furthermore, the clips protect the positive and negative contact pieces 3 from external impacts and collisions, facilitating transportation and transfer.

[0030] As attached Figure 2 To be continued Figure 5 and attached Figure 8 To be continued Figure 9As shown, in this embodiment, the positive and negative contact pieces 3 are provided with two oppositely arranged end faces 30. A first contact terminal 31 and a second contact terminal 32 are respectively provided on the end faces 30. Conductors 12, which are electrically connected to the first contact terminal 31 and the second contact terminal 32, are provided within the track 100. The first contact terminal 31 and the second contact terminal 32 are directly disposed on the two end faces 30 of the positive and negative contact pieces 3. Compared to the elastic conductive contacts of the prior art, the positive and negative contact pieces 3 have higher strength, effectively preventing deformation, and providing a firm connection and excellent contact. This prevents the positive and negative contact pieces 3 from being subjected to external collisions or impacts, facilitating transportation and transfer.

[0031] Furthermore, the positive and negative contact plates 3 can be configured as a PCB board, while the first contact terminal 31 and the second contact terminal 32 can be soldered on the PCB board or metal wiring printed on the PCB board.

[0032] As attached Figure 2 To be continued Figure 10 As shown, in this embodiment, the buckle 2 is provided with a slot 22 and an opening 23 for the track 100 to be inserted into. The positive and negative contact pieces 3 are fixed in the slot 22. More specifically, the buckle 2 is symmetrically provided with contact pieces, and the slot 22 and the opening 23 are formed between the two contact pieces. The lamp head 200 is detachably connected to the track 100, and the lamp head 200 can be added and removed at any time according to the actual situation. The positive and negative contact pieces 3 are fixed in the slot 22, and the contact pieces can protect the positive and negative contact pieces 3 from collisions and impacts from external forces, facilitating transportation and transfer.

[0033] Furthermore, the track 100 is cylindrical, and the corresponding slot 22 is also circular, allowing the lamp head 200 to slide freely on the track 100 and be positioned at any location. This facilitates adjustment of the lamp head 200 without the need to remove it and reinstall it in a suitable position, making adjustment simple and quick and improving the user experience.

[0034] As attached Figure 2 To be continued Figure 11As shown, in this embodiment, the track 100 includes a profile 4 and an insulator 5 disposed within the profile 4, with the conductor 12 disposed within the insulator 5. The insulator 5 can enclose the charged conductor 12. Compared to the prior art where the electrode strip is placed on a PCB board and the PCB board is directly mounted within the track, the prior art does not provide an insulator to isolate the electrode strip, allowing current to easily leak into the track. Furthermore, the electrode strip is exposed, making direct contact with it highly likely to cause electric shock, affecting the user's personal safety and property. In this embodiment, the insulator 5 enclosing the charged conductor 12 effectively prevents leakage and electric shock. The positive and negative electrical grooves 11 are disposed within the insulator 5, with the two conductors 12 respectively disposed on both sides of the positive and negative electrical grooves 11. The conductors 12 and the positive and negative contact pieces 3 are connected by an interference fit, ensuring a strong connection and excellent contact between them.

[0035] Furthermore, the hanging rope 8 and the profile 4 can be suspended by simply opening a hanging hole on the profile 4, thereby forming a chandelier. Of course, the profile 4 can also be fixed to the ceiling or wall, thereby forming a ceiling light or wall light by using the lamp head assembly.

[0036] Furthermore, the insulator 5 includes a first insulating part 51 and a second insulating part 52. The first insulating part 51 is provided with a positioning protrusion 511, and the second insulating part 52 is provided with a positioning groove 521. During assembly, the positioning protrusion 511 is inserted into the positioning groove 521. The profile 4 is also provided with an opening for the positive and negative contact pieces 3 to pass through. The opening of the profile 4, together with the side wall of the first insulating part 51, the side wall of the second insulating part 52, and the positioning protrusion 511, forms the positive and negative contact groove 11, which facilitates the disassembly, assembly, and replacement of the insulator. At the same time, the first insulating part 51, the second insulating part 52, and the profile 4 are also provided with other positioning blocks and positioning strips to facilitate the formation of the positive and negative contact groove 11 and to facilitate the connection of the lamp holder 200 to power.

[0037] As attached Figure 2 To be continued Figure 11As shown, in this embodiment, the profile 4 is further provided with a positioning groove 42, and the slot 22 is further provided with a positioning strip 24 inserted into the positioning groove 42 during assembly. When the positioning strip 24 is inserted into the positioning groove 42 after assembly, it can not only fix the lamp head 200 circumferentially and prevent the lamp head 200 from rotating around the track 100, effectively preventing the positive and negative contact pieces 3 from deforming or breaking due to the rotation of the lamp head 200, and avoiding poor contact between the positive and negative contact pieces 3 and the conductor 12, but also the cooperation of the positioning groove 42 and the positioning strip 24 can guide the lamp head 200 when it slides freely on the track 100, making it convenient for the lamp head 200 to be positioned at any position, and convenient for adjusting the lamp head 200 without having to remove the lamp head 200 and reinstall it in a suitable position. The adjustment is simple and quick, improving the user experience.

[0038] As attached Figure 2 To be continued Figure 11 As shown, in this embodiment, the lamp head 200 includes a lampshade 6 and a connecting post 60 disposed within the lampshade 6. The light-emitting body 300 includes a first light source 61 disposed on the outer periphery of the connecting post 60 and a second light source 62 disposed at the lower end of the connecting post 60. A lens 7 is also disposed on the lampshade 6 at the lower end of the second light source 62. The first light source 61 is disposed around the outer periphery of the connecting post 60, so that the first light source 61 illuminates the lampshade 6 uniformly. Furthermore, the lampshade 6 is made of glass, ensuring that the light illuminating the ceiling and walls is free of clutter and overlapping shadows, with sharp, clean light edges, forming soft light that enhances the ambient atmosphere and the lighting decoration effect of the lamp head assembly. Moreover, the second light source 62 illuminates the ground and tabletop through the lens 7. These two light-emitting methods allow for adjustment of illuminance and luminous efficacy according to actual conditions, meeting the needs of focused lighting and providing concentrated illumination to key objects.

[0039] As attached Figure 2 To be continued Figure 11 As shown, in this embodiment, a constant current module is also provided inside the lamp head 200. The input terminal of the constant current module is electrically connected to the positive and negative terminals 3, and the output terminal of the constant current module is electrically connected to the light-emitting element 300. Furthermore, the track 100 adopts a constant voltage method, so the electricity, after passing through the constant current module, supplies power to the light-emitting element 300 in a constant current manner. This facilitates adjustment of the illuminance of the light-emitting element 300, regardless of the type or distance of the lamp head components. The illuminance can be adjusted independently by the control circuit to achieve adjustment of the light spot size, thereby adjusting the lighting effect.

Claims

1. A lamp head assembly, comprising a track (100) and a lamp head (200) detachably connected to the track (100), the lamp head (200) being provided with a light-emitting element (300) and a latch (2) for connecting to the track (100), the latch (2) being sleeved on the track (100) to allow the lamp head (200) to be movably disposed on the track (100), characterized in that: The lamp head (200) includes a lampshade (6) and a connecting post (60) disposed inside the lampshade (6). The light-emitting body (300) includes a first light source (61) surrounding the outer periphery of the connecting post (60) and a second light source (62) disposed at the lower end of the connecting post (60). The buckle (2) is fixed on the top of the lampshade (6). Two arc-shaped snap-fit ​​pieces are symmetrically arranged on the buckle (2). A circular slot (22) is formed between the two arc-shaped snap-fit ​​pieces. The top of the two arc-shaped snap-fit ​​pieces is provided with an opening (2) communicating with the slot (22). 3) A positive and negative contact piece (3) is provided in the buckle (2) with its upper end extending into the slot (22). The lower end of the positive and negative contact piece (3) is electrically connected to the light-emitting body (300). The positive and negative contact piece (3) is provided with two oppositely arranged end faces (30). A first contact terminal (31) and a second contact terminal (32) are respectively provided on the end faces (30). The track (100) is cylindrical. The track (100) includes a cylindrical profile (4) and an insulator (5) disposed in the profile (4). The insulator (5) includes a first insulating part ( 51) and the second insulating part (52), the first insulating part (51) and the second insulating part (52) are provided with conductors (12), the first insulating part (51) is provided with a positioning protrusion (511), and the second insulating part (52) is provided with a positioning groove (521). During assembly, the positioning protrusion (511) is inserted into the positioning groove (521). The bottom of the profile (4) is also provided with an opening for the positive and negative contact pieces (3) to pass through. The opening of the profile (4) is connected to the side wall of the first insulating part (51), the side wall of the second insulating part (52) and the positioning groove (521). Positive and negative electrical grooves (11) are formed between the protruding strips (511). The two conductors (12) are respectively arranged on both sides of the positive and negative electrical grooves (11). When the track (100) is inserted into the buckle (2), the arc-shaped outer wall of the track (100) fits against the arc-shaped inner wall of the two snap-fit ​​pieces. At this time, the positive and negative electrical contact pieces (3) are inserted upward into the positive and negative electrical grooves (11) so that the first electrical contact terminal (31) and the second electrical contact terminal (32) on the two end faces of the positive and negative electrical contact pieces (3) are electrically connected to the conductors (12) provided on the first insulating part (51) and the second insulating part (52) respectively.

2. The lamp holder assembly according to claim 1, characterized in that: The profile (4) is also provided with a positioning groove (42), and the slot (22) is also provided with a positioning strip (24) inserted into the positioning groove (42) during assembly.

3. The lamp holder assembly according to claim 1, characterized in that: The lamp holder (200) is also equipped with a constant current module. The input end of the constant current module is electrically connected to the positive and negative terminals (3), and the output end of the constant current module is electrically connected to the light emitter (300).

4. The lamp holder assembly according to claim 1, characterized in that: The lampshade (6) is also provided with a lens (7) located at the lower end of the second light source (62).

5. A chandelier, characterized in that, include: Sling (8); The lamp head assembly according to any one of claims 1-4, wherein the suspension rope (8) is fixedly connected to the track (100); comprising the track (100) and a lamp head (200) detachably connected to the track (100), the lamp head (200) being provided with a light-emitting element (300) and a buckle (2) for connecting to the track (100), the buckle (2) being sleeved on the track (100) so that the lamp head (200) is movably disposed on the track (100), the lamp head (200) comprising a lamp cover (6) and a connecting post (60) disposed within the lamp cover (6), the light-emitting element (300) comprising a first light source surrounding the outer periphery of the connecting post (60). (61) and a second light source (62) disposed at the lower end of the connecting post (60), the buckle (2) is fixed on the top of the lampshade (6), the buckle (2) is symmetrically provided with two arc-shaped snap-fit ​​pieces, and a circular hole-shaped slot (22) is formed between the two arc-shaped snap-fit ​​pieces, the top of the two arc-shaped snap-fit ​​pieces is provided with an opening (23) communicating with the slot (22), and a positive and negative contact piece (3) is provided in the buckle (2) with its upper end extending into the slot (22), the lower end of the positive and negative contact piece (3) is electrically connected to the light-emitting body (300), the positive and negative contact piece (3) is provided with two oppositely arranged end faces (30), and the end faces (30) are respectively provided with a first contact terminal (31) and The second electrical terminal (32); the track (100) is cylindrical, the track (100) includes a cylindrical profile (4) and an insulator (5) disposed in the profile (4), the insulator (5) includes a first insulating part (51) and a second insulating part (52), a conductor (12) is provided on the first insulating part (51) and the second insulating part (52), a positioning protrusion (511) is provided on the first insulating part (51), and a positioning groove (521) is provided on the second insulating part (52). During assembly, the positioning protrusion (511) is inserted into the positioning groove (521). The bottom of the profile (4) is also provided with an opening for the positive and negative electrical contacts (3) to pass through. The opening of the profile (4) forms a positive and negative electrical groove (11) with the side wall of the first insulating part (51), the side wall of the second insulating part (52) and the positioning protrusion (511). The two conductors (12) are respectively arranged on both sides of the positive and negative electrical groove (11). When the track (100) is inserted into the buckle (2), the arc-shaped outer wall of the track (100) fits against the arc-shaped inner wall of the two snap-fit ​​pieces. At this time, the positive and negative electrical contact pieces (3) are inserted upward into the positive and negative electrical groove (11) so that the first electrical contact terminal (31) and the second electrical contact terminal (32) on the two end faces of the positive and negative electrical contact pieces (3) are electrically connected to the conductors (12) provided on the first insulating part (51) and the second insulating part (52) respectively.

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