EP4641082A1

EP4641082A1 - Connector, guide rail assembly and lamp

Info

Publication number: EP4641082A1
Application number: EP23905830.8A
Authority: EP
Inventors: Quanbiao WANG
Original assignee: Opple Lighting Co Ltd; Suzhou Op Lighting Co Ltd
Current assignee: Opple Lighting Co Ltd; Suzhou Op Lighting Co Ltd
Priority date: 2022-12-19
Filing date: 2023-12-15
Publication date: 2025-10-29
Also published as: WO2024131666A1

Abstract

A connector (103), a guide rail assembly and a lamp (100). The connector (103) comprises: a housing (104), wherein the housing (104) is horizontally provided with a first through hole (1042) and a second through hole (1044), which penetrate the housing (104); a first swing rod (10), which has a first extension portion (111) extending from the inside of the housing (104) to the outside of the first through hole (1042); an electrical connection assembly (20), which has an electrically conductive elastic piece (21) protruding from the inside of the first extension portion (111); a second swing rod (30), which has a second extension portion (311) extending from the inside of the housing (104) to the outside of the second through hole (1044); and a retaining assembly, which is configured to limit the rotation of the first swing rod (10) and the second swing rod (30). By means of pushing the first swing rod (10), the lengths of the first extension portion (111) and the electrically conductive elastic piece (21) that extend to the outside of the first through hole (1042) can be changed, and by means of pushing the second swing rod (30), the length of the second extension portion (311) extending to the outside of the second through hole (1044) can be changed. By means of providing the retaining assembly, the electrically conductive elastic piece (21) can be prevented from loosening, such that poor contact between the electrical connection assembly (20) and a guide rail (102) is avoided, and whether the swing rod is installed in place can be indicated, so as to improve the hand feeling during installation.

Description

The present application claims the priority of the Chinese patent application No. 202211629801.5, filed on December 19, 2022 , titled "ADAPTER, GUIDE RAIL ASSEMBLY, AND LIGHTING FIXTURE" and the Chinese patent application No. 202223394105.9, filed on December 19, 2022 , titled "ADAPTER, GUIDE RAIL ASSEMBLY, AND LIGHTING FIXTURE", the entire contents of which are incorporated by reference in the present application.

TECHNICAL FIELD

The present application relates to an adapter, a guide rail assembly and a lighting fixture, belonging to a field of lighting technology.

BACKGROUND

Generally, the guide lamp is clamped in the guide rail through the expansion and contraction of the swing rod, but the swing rod is easy to loosen under the influence of external force, resulting in poor contact of the electrical connection between the swing rod and the guide rail. Some guide lamps directly lock the swing rod to fix it, but it is not convenient to disassemble and replace it. In addition, because the swing rod is invisible during the assembly process, it is impossible to know whether it is assembled in place.
In view of this, it is really necessary to propose an adapter, a guide rail assembly and a lighting fixture to solve the above problems.

SUMMARY

The objectives of the present application are to provide an adapter, a guide rail assembly and a lighting fixture that can prevent loosening and poor contact.
In order to achieve the above objectives, the present application provides an adapter, including: a housing, wherein the housing is provided with a first through hole and a second through hole each penetrating through the housing in a horizontal direction; a first swing rod, wherein the first swing rod includes a first extension portion extending from an inside of the housing to an outside of the first through hole; an electrical connection assembly, wherein the electrical connection assembly includes a conductive spring piece protruding outward from an inside of the first extension portion; a second swing rod, wherein the second swing rod includes a second extension portion extending from the inside of the housing to an outside of the second through hole; and an anti-retraction assembly, wherein the anti-retraction assembly is configured to limit a rotation of the first swing rod and a rotation of the second swing rod; wherein a length of the first extension portion and a length of the conductive spring piece extending out of the first through hole are configured to be changed by actuating the first swing rod, and a length of the second extension portion extending out of the second through hole is configured to be changed by actuating the second swing rod.
Optionally, the first swing rod includes a first rotating member and a first arm extending outward from a sidewall of the first rotating member, an end of the housing is further provided with a first sliding slot for the first arm 12 to extend outward, and the first arm is configured to be slid along the first sliding slot to drive the first rotating member to rotate.
Optionally, the sidewall of the housing is further provided with a third through hole, the third through hole is located above the first through hole, and the electrical connection assembly further includes a grounding spring piece, the grounding spring piece is fixed to the first rotating member and located above the conductive spring piece, and the grounding spring piece is configured to rotate along with the first rotating member and extends outward from the third through hole.
Optionally, a through slot is formed in the first rotating member and penetrates through the first rotating member, and the first swinging rod further includes a fixing member arranged in the through slot, and the grounding spring piece is arranged at an upper end of the fixing member, and the conductive spring piece is partially arranged in the through slot and located between the fixing member and the first rotating member.
Optionally, the first extension portion includes a first pressing piece fixed on a sidewall of the first rotating member and a second pressing piece fixed on a sidewall of the fixing member, the first pressing piece and the second pressing piece abut against each other, and a conductive slot is formed between the first pressing piece and the second pressing piece for the conductive spring piece to extend outward.
Optionally, the first extension portion is formed on a sidewall of the first rotating member, and first extension portions are arranged in a pair and extending in opposite directions, the first extensions arranged in a pair have different thicknesses.
Optionally, the anti-retraction assembly includes a first bump and a first limiting rib, the first bump is arranged on the first rotating member in a protruding way, and a protruding direction of the first bump is the same as an extending direction of one of the first extension portions; the first limiting rib is arranged in the housing, a side of the first limiting rib is configured to abut against the first bump, and the first arm is configured to drive the first bump to deform the first limiting rib under an action of an external force, so that the first bump moves to another side of the first limiting rib.
Optionally, the second swing rod includes a second rotating member and a second arm extending outward from a sidewall of the second rotating member, and a sidewall of the housing is further provided with a second sliding slot for the second arm to extend outward, and the second arm is configured to slide along the second sliding slot to drive the second rotating member to rotate.
Optionally, the second extension portion is formed on a sidewall of the second rotating member, and second extension portions are arranged in a pair and extending in opposite directions, the second extensions arranged in a pair have different thicknesses.
Optionally, the anti-retraction assembly further includes a second bump and a second limiting rib, the second bump is arranged on the second rotating member in a protruding way, and a protruding direction of the second bump is the same as an extending direction of one of the second extension portions; the second limiting rib is arranged in the housing, a side of the second limit rib is configured to abut against the second bump, and the second arm is configured to drive the second bump to deform the second limit rib under an action of an external force, so that the second bump moves to another side of the second limit rib.
Optionally, the adapter further includes a connection rod located at a bottom of the housing, the connection rod has a hollow structure, and an end of the connection rod is provided with an annular wall extending radially, and the housing is provided with a receiving chamber for the annular wall to be clamped, the connecting rod is configured to be rotatable relative to the receiving cavity.
Optionally, the annular wall is further provided with a third bump, and a third limiting rib for abutting against the third bump is arranged in the receiving chamber.
In order to achieve the above objectives, the present application further provides a guide rail assembly, including the above-mentioned adapter and a guide rail, wherein the guide rail is concavely provided with a groove for accommodating a part of the housing, the adapter is configured to be slidable along the groove, and a first guide groove for the first extension portion to slide and a second guide groove for the second extension portion to slide are formed in the groove.
Optionally, the first extension portion and the second extension portion each have a first state and a second state, in the first state, an orthographic projection of the first extension portion on a horizontal plane partially overlaps with an orthographic projection of the first guide groove on the horizontal plane, and an orthographic projection of the second extension portion on the horizontal plane partially overlaps with an orthographic projection of the second guide groove on the horizontal plane, in the second state, the orthographic projection of the first extension portion on the horizontal plane does not overlap with the orthographic projection of the first guide groove on the horizontal plane, and the orthographic projection of the second extension portion on the horizontal plane does not overlap with the orthographic projection of the second guide groove on the horizontal plane.
Optionally, the first guide groove and the second guide groove are asymmetrically arranged.
Optionally, a third guide groove is further formed in the groove, and the third guide groove is located above the first guide groove or the second guide groove.
In order to achieve the above objectives, the present application further provides a lighting fixture, including the above-mentioned adapter and a lighting fixture body, the adapter is electrically connected with the lamp body through the conductive spring piece.
The beneficial effects of the present application are: according to the present application, by arranging the anti-retraction assembly, the conductive spring piece can be prevented from disengaging, the poor contact between the electric connection component and the guide rail can be avoided, and whether it is installed in place can be indicated to enhance the hand feeling in the installation process.

BRIEF DESCRIPTION OF DRAWINGS

Fig. 1 is a schematic structural diagram of a lighting fixture of the present application.
Fig. 2 is an exploded structural schematic diagram of a guide rail assembly of the present application.
Fig. 3 is an exploded structural schematic diagram of a guide rail assembly of the present application from another perspective.
Fig. 4 is an exploded structural schematic diagram of an adapter of the present application.
Fig. 5 is an exploded structural schematic diagram of an adapter of the present application.
Fig. 6 is an exploded structural schematic diagram of a first swing rod in an adapter of the present application.
Fig. 7 is a schematic cross-sectional structural diagram of a top view of an adapter of the present application.
Fig. 8 is a schematic cross-sectional structural diagram of a guide rail assembly of the present application.
Fig. 9 is an enlarged structural schematic diagram at A in Fig. 8.
Fig. 10 is a schematic cross-sectional structural diagram of a bottom of an adapter of the present application.
Fig. 11 is a schematic cross-sectional structural diagram of a top view of an adapter of the present application from another perspective.
Fig. 12 is an exploded structural diagram of a part of a structure of an adapter of the present application.

Reference signs:

lighting fixture 100;
lamp body 101, guide rail 102, first guide groove 1021, second guide groove 1022, third guide groove 1023;
adapter 103;
housing 104, first sliding slot 1041, first through hole 1042, second sliding slot 1043, second through hole 1044, third through hole 1045, receiving chamber 1046, third limiting rib 1047, first limiting rib 1048, second limiting rib 1049;
connection rod 105, annular wall 1051, third bump 1052;
first swing rod 10, first rotating member 11, first extension portion 111, first pressing piece 1111, conductive slot 1112, through slot 112, limiting groove 1121, fixing member 113, limiting portion 1131, second pressing piece 1132, first arm 12, first flange 121, first bump 122;
electrical connection assembly 20, conductive spring piece 21, grounding spring piece 22;
second swing rod 30, second rotating member 31, second extension portion 311, second arm 32, second flange 321, and second bump 322.

DETAILED DESCRIPTION

In order to make objectives, technical solutions and advantages of the present application clearer, the present application will be described in detail below with reference to the accompanying drawings and specific embodiments.
Here, it should be noted that, in order to avoid obscuring the present application with unnecessary details, only the structures and/or processing steps closely related to the solution of the present application are illustrated by the drawings, while other details that are not related to the present application are omitted.
In addition, it should also be noted that the terms "includes," "comprises," or any other variation thereof are intended to cover a non-exclusive inclusion, such that a process, method, article or device that includes a list of elements includes not only the above elements, but also other elements not expressly listed or inherent to such process, method, article or device are further included.
As illustrated by Figs. 1 to 12, the present application discloses a lighting fixture 100, the lighting fixture 100 is a guide rail lamp, and includes a guide rail assembly and a lamp body 101 for lighting, the lamp body 101 can freely slide relative to the guide rail assembly and adjust a lighting angle, and the lamp body 101 can be conveniently installed and disassembled on the guide rail assembly. For the sake of clarity, the following description will take the lighting fixture 100 as an example to explain in detail.
As illustrated by Figs. 2 and 3, the guide rail assembly includes a guide rail 102 and an adapter 103, the guide rail 102 is used for being installed on an installation benchmark such as a ceiling, and the guide rail 102 is concavely provided with a groove for accommodating a part of the adapter 103, and an extending direction of the groove is consistent with a length direction of the guide rail 102, and the adapter 103 can slide along the groove, and a first guide groove 1021, a second guide groove 1022 and a third guide groove 1023 are formed in the groove, and the first guide groove 1021, second guide groove 1022, and third guide groove 1023 are respectively installed with a neutral wire, live wire and ground wire.
Preferably, the first guide groove 1021 and the second guide groove 1022 are arranged opposite to each other, and the neutral wire and the live wire are respectively arranged in the first guide groove 1021 and the second guide groove 1022, the ground wire is arranged in the third guide groove 1023, and the third guide groove 1023 is located above the first guide groove 1021 or the second guide groove 1022. In the present application, the third guide groove 1023 is located above the first guide groove 1021.
The adapter 103 is used to electrically connect the guide rail 102 and the lamp body 101. In this embodiment, an upper end of the adapter 103 can slide along the guide rail 102, and a lower end of the adapter 103 is used to connect the lamp body 101. Specifically, the adapter 103 includes a housing 104 and a connection rod 105. The connection rod 105 is fixed at a lower end of the housing 104 and used for connecting the lamp body 101.
As illustrated by Figs. 4 and 5, the housing 104 is provided with a first swing rod 10, an electrical connection assembly 20 and a second swing rod 30, the first swing rod 10 and the second swing rod 30 are used for fixing the adapter 103 in the guide rail 102, and at the same time, the adapter 103 can be separated from the guide rail 102 by controlling the first swing rod 10 and the second swing rod 30. The electrical connection assembly 20 is used to connect with the neutral wire, the live wire and the ground wire, and is connected with the lamp body 101 through a wire. The connection rod 105 may have a hollow structure, so that the wire can be connected with the lamp body 101 through the connection rod 105.
As illustrated by Fig. 6, the first swing rod 10 includes a first rotating member 11 and a first arm 12. The first rotating member 11 is arranged in the housing 104, the housing 104 includes a chamber for the first rotating member 11 to rotate relative to the housing 104. The first arm 12 extends outward from a sidewall of the first rotating member 11 to an outside of the housing 104, and the housing 104 is correspondingly provided with a first sliding slot 1041 allowing the first arm 12 to extend outward, the first arm 12 can slide along the first sliding slot 1041 to drive the first rotating member 11 to rotate.
The sidewall of the first rotating member 11 is further provided with a first extension portion 111, and the housing 104 is correspondingly provided with a first through hole 1042 allowing the first extension portion 111 to extend outward. When the first rotating member 11 rotates, a length of the first extension portion 111 extending out of the first through hole 1042 can be changed. Preferably, first extension portions 111 are arranged in a pair and extending in opposite directions. The first through holes 1042 penetrate through the housing 104 and are formed at two sides of the housing 104, and the first extension portions 111 arranged in a pair have different thicknesses. A thickness of the first through hole 1042 corresponding to the first extension 111 is correspondingly changed, thereby achieving foolproof, specifically, it can be set as required, as long as it can ensure that the first through hole 1042 and the first extension portion 111 do not interfere with each other, and there is no restriction here.
When the housing 104 is partially located in the groove, the pair of the first through holes 1042 are respectively aligned with the first guide groove 1021 and the second guide groove 1022, and an extension length of the first extension portion 111 can be changed by actuating the first arm 12, so that the first extension portion 111 extends into the first guide groove 1021, so that the first guide groove 1021 fixes the adapter 103 in a vertical direction, therefore, the adapter 103 can only move in a horizontal direction, that is, one of the first extension portion 111 slides along the first guide groove 1021 and another first extension portion 111 slides along the second guide groove 1022. When the adapter 103 needs to be disassembled, simply reverse-actuate the first arm 12 to retract the first extension portion 111 from the first guide groove 1021. That is, the first extension portion 111 has a first state and a second state. In the first state, an orthographic projection of the first extension portion 111 on a horizontal plane partially overlaps with an orthographic projection of the first guide groove 1021 on the horizontal plane, and in the second state, the orthographic projection of the first extension portion 111 on the horizontal plane does not overlap with the orthographic projection of the first guide groove 1021 on the horizontal plane.
It can be understood that because the thicknesses of the pair of the first extension portions 111 are different, a thickness of the first guide groove 1021 and a thickness of the second guide groove 1022 can also be different, that is, the first guide groove 1021 and the second guide groove 1022 are asymmetrically arranged, and the specific thicknesses of the first guide groove 1021 and the second guide groove 1022 can be set according to the thicknesses corresponding to the first extension portions 111, as long as the first extension portions 111 can be accommodated.
The electrical connection assembly 20 includes a pair of conductive spring pieces 21 for connecting the neutral wire and the live wire respectively, and a grounding spring piece 22 for connecting the ground wire. The conductive spring piece 21 is arranged in the first extension portion 111 and extends outward from the first extension portion 111, that is, in the first state, the first extension portion 111 rotates into the first guide groove 1021, so that the conductive spring piece 21 in the first extension portion 111 is electrically connected with the neutral wire in the first guide groove 1021, and the conductive spring piece 21 in the first extension portion111 at another side is electrically connected with the live wire in the first guide groove 1021 at another side, thereby realizing the electrical connection between the guide rail 102 and the adapter 103. The first swing rod 10 is a physical switch of the lighting fixture 100, which can physically switch on and off the lamp body 101.
In the above embodiment, the sidewall of the housing 104 is further provided with a third through hole 1045, the third through hole 1045 is located above the first through hole 1042, and a distance between the first guide groove 1021 and the third guide groove 1023 is equal to a distance between the first through hole 1042 and the third through hole 1045, that is, when the first through hole 1042 is aligned with the first guide groove 1021, the third through hole 1045 is aligned with the third guide groove 1023. At the same time, the grounding spring piece 22 is fixed to the first rotating member 11 and located above the conductive spring piece 21, and rotates with the first rotating member 11 and extends outward from the third through hole 1045. In this way, when the conductive spring piece 21 in the first extension portion 111 rotates into the first guide groove 1021 and is electrically connected with the live wire, the grounding spring piece 22 is electrically connected with the ground wire in the third guide groove 1023, and the pair of the conductive spring piece 21 and the grounding spring piece 22 can keep on and off with the neutral wire, live wire, and ground wire synchronously.
Referring to Fig. 6 and Fig. 7, in other embodiments of the present application, a through slot 112 penetrating through the first rotating member 11 is formed in the first rotating member 11, and the first swing rod 10 further includes a fixing member 113 arranged in the through slot 112, and a limiting groove 1121 is further formed on an inner wall of the through slot 112, and extending directions of the through slot 112 and the limiting groove 1121 are the same. Moreover, the fixing member 113 includes a limiting portion 1131 extending into the limiting groove 1121, which is arranged so as to prevent the fixing member 113 from rotating relative to the first rotating member 11, that is, when the first rotating member 11 rotates, the fixing member 113 can rotate synchronously under the drive of the first rotating member 11.
Further, the grounding spring piece 22 is fixed at an upper end of the fixing member 113 by a fastener. When the conductive spring piece 21 rotates with the first rotating member 11, the grounding spring piece 22 rotates with the fixing member 113, so as to realize the synchronous rotation of the conductive spring piece 21 and the grounding spring piece 22. The conductive spring piece 21 is partially arranged in the through slot 112 and located between the fixing member 113 and the first rotating member 11, and the grounding spring piece 22 and the conductive spring piece 21 are insulated by the fixing member 113.
In addition, a lower end of the conductive spring piece 21 is fixed on the first rotating member 11 through a fastener, and an upper end of the conductive spring piece 21 extends outward from the first extension portion 111, and an elastic portion 211 is arranged between the upper end and the lower end of the conductive spring piece 21, the elastic portion 211 is in abutment with the first rotating member 11 and enables the conductive spring piece 21 to elastically deform relative to the first rotating member 11, that is, when the conductive spring piece 21 is in abutment with the neutral wire or the live wire, the elastic portion 211 can drive the upper end of the conductive spring piece 21 to abut against the neutral wire or the live wire, so that the circuit can make effective contact.
In order to enhance the fixing of the upper end of the conductive spring piece 21 and the abutment effect with the neutral wire or the live wire, the first extension portion 111 includes a first pressing piece 1111 and a second pressing piece 1132, the first pressing piece 1111 is formed on a sidewall of the first rotating member 11, and the second pressing piece 1132 is formed on a sidewall of the fixing member 113, and the first pressing piece 1111 and the second pressing piece 1132 abut against each other. Such that the conductive spring piece 21 is fixed between the first pressing piece 1111 and the second pressing piece 1132, and a conductive slot 1112 is formed between the first pressing piece 1111 and the second pressing piece 1132 for the conductive spring piece 21 to extend outward, so that the conductive spring piece 21 can reciprocate along the conductive slot 1112.
As illustrated by Fig. 8 and Fig. 9, in a preferred embodiment of the present application, the adapter 103 is further provided with an anti-retraction assembly, the anti-retraction assembly is used for limiting the rotation of the first swing rod 10 and the second swing rod 30, and the anti-retraction assembly includes a first bump 122 and a first limiting rib 1048.
The first arm 12 includes a first flange 121 arranged around the first rotating member 11, the first flange 121 can rotate in the first sliding slot 1041, and an outer periphery of the first flange 121 is provided with the first bump 122 in a protruding way, a protruding direction of the first bump 122 is the same as an extending direction of one of the first extension portions 111 to play a pointing role. Of course, the first flange 121 and the first arm 12 can also be arranged on different plane surfaces, and there is no specific limitation.
As illustrated by Fig. 10, the first limiting rib 1048 is arranged in the first sliding slot 1041, and the first bump 122, when located at a side of the first limiting rib 1048, corresponds to the first state, and the first bump 122, when located at another side of the first limiting rib 1048, corresponds to the second state. In the second state, the first arm 12 drives the first rotating member 11 and the first flange 121 to rotate under an action of an external force, and makes the first bump 122 abut against a side of the first limiting rib 1048. Under the continuous action of external force, the first bump 122 deforms the first limiting rib 1048, so that the first bump 122 moves to another side of the first limiting rib 1048, thus switching from the second state to the first state. To switch from the first state to the second state, just move the first arm 12 in an opposite direction, so that the first bump 122 moves from another side of the first limiting rib 1048 to an opposite side of the first limiting rib 1048.
When in the first state, the conductive spring piece 21 is electrically connected with the neutral wire or the live wire, and at this time, the first limiting rib 1048 is in abutment with the first bump 122. The first limiting rib 1048 can prevent the first bump 122 from being detached at will, that is, prevent the conductive spring piece 21 from being in poor contact with the neutral wire and the live wire.
As illustrated by Fig. 12, the connection rod 105 is located at a bottom of the housing 104. An end of the connection rod 105 facing the housing 104 is provided with an annular wall 1051 extending radially, and the housing 104 is provided with a receiving chamber 1046 for the annular wall 1051 to be clamped. The connection rod 105 can rotate relative to the receiving chamber 1046, that is, when the connection rod 105 is connected with the lamp body 101, an irradiation angle of the lamp body 101 can be adjusted arbitrarily by rotating the lamp body 101. In addition, in order to prevent the lamp body 101 from unlimited rotation in a single direction and prevent wires from winding, the annular wall 1051 is further provided with a third bump 1052 extending radially, and a third limiting rib 1047 for abutting against the third bump 1052 is arranged in the receiving chamber 1046, so that a maximum rotation angle of the connection rod 105 relative to the housing 104 in a single direction is less than 360 degrees.
In other embodiments of the present application, a second swing rod 30 is further arranged in the housing 104, the second swing rod 30 includes a second rotating member 31 and a second arm 32. The second rotating member 31 is arranged in the housing 104, and the housing 104 includes a chamber therein for the second rotating member 31 to rotate relative to the housing 104. The second arm 32 extends outward from a sidewall of the second rotating member 31 to an outside of the housing 104. The housing 104 is correspondingly provided with a second sliding slot 1043 allowing the second arm 32 to extend outward, and the second arm 32 can slide along the second sliding slot 1043 to drive the second rotating member 31 to rotate.
The sidewall of the second rotating member 31 is further provided with a second extension portion 311, and the housing 104 is correspondingly provided with a second through hole 1044 allowing the second extension portion 311 to extend outward. When the second rotating member 31 rotates, a length of the second extension portion 311 extending out of the second through hole 1044 can be changed. Preferably, second extension portions 311 are arranged in a pair and extending in opposite directions. The second through holes 1044 penetrate through the housing 104 and are formed at two sides of the housing 104, and the second extension portions 311 arranged in a pair have different thicknesses. A thickness of the second through hole 1044 corresponding to the first extension 111 is correspondingly changed, thereby achieving foolproof, specifically, it can be set as required, as long as it can ensure that the first through hole 1042 and the first extension portion 111 do not interfere with each other, and there is no restriction here.
It should be noted that horizontal heights of the first through hole 1042 and the second through hole 1044 on a same side of the housing 104 are the same, so that when the first extension portion 111 extends outward from the first through hole 1042 and the second extension portion 311 extends outward from the second through hole 1044 respectively, the first extension portion 111 and the second extension portion 311 on a same side can be aligned with the first guide groove 1021 or the second guide groove 1022 at the same time. In addition, the first extension portion 111 and the second extension portion 311 on a same side have a same thickness.
Similarly, the second extension portion 311 includes a first state and a second state. In the first state, an orthogonal projection of the second extension portion 311 on a horizontal plane partially overlaps with an orthogonal projection of the second guide groove 1022 on the horizontal plane. In the second state, the orthogonal projection of the second extension portion 311 on the horizontal plane does not overlap with the orthogonal projection of the second guide groove 1022 on the horizontal plane.
As illustrated by Fig. 11, in a preferred embodiment of the present application, the anti-retraction assembly further includes a second bump 322 and a second limiting rib 1049, the second arm 32 includes a second flange 321 arranged around the second rotating member 31, and the second flange 321 can rotate in the second sliding slot 1043, and an outer periphery of the second flange 321 is provided with a second bump 322 in a protruding way, and a protruding direction of the second bump 322 is the same as an extending direction as one of the second extension portions 311 to play a pointing role. Of course, the second flange 321 and the second arm 32 can also be arranged on different planes, and there is no specific limitation.
The second limiting rib 1049 is arranged in the second sliding slot 1043, and a side of the second limiting rib 1049 is used for abutting against the second bump 322. Under an external force, the second arm 32 can drive the second bump 322 to deform the second limiting rib 1049, so that the second bump 322 can move to another side of the second limiting rib 1049. The second bump 322 and the second limiting rib 1049 are matched in the same way as the first bump 122 and the first limiting rib 1048, and both of them play a role in limiting and preventing separation, which will not be described in detail here.
To sum up, by arranging the anti-retraction assembly, the present application can prevent the conductive spring piece 21 from disengaging, avoid the poor contact between the electrical connection assembly 20 and the guide rail 102, and indicate whether it is installed in place to enhance the hand feeling during installation.
The above embodiments are only used to illustrate the technical solution of the present application, but not to limit it. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical scheme of the application can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present application.

Claims

An adapter, comprising:
a housing (104), wherein the housing (104) is provided with a first through hole (1042) and a second through hole (1044) each penetrating through the housing (104) in a horizontal direction;

a first swing rod (10), wherein the first swing rod (10) comprises a first extension portion (111) extending from an inside of the housing (104) to an outside of the first through hole (1042);

an electrical connection assembly (20), wherein the electrical connection assembly (20) comprises a conductive spring piece (21) protruding outward from an inside of the first extension portion (111);

a second swing rod (30) , wherein the second swing rod (30) comprises a second extension portion (311) extending from the inside of the housing (104) to an outside of the second through hole (1044); and

an anti-retraction assembly, wherein the anti-retraction assembly is configured to limit a rotation of the first swing rod (10) and a rotation of the second swing rod (30);

wherein a length of the first extension portion (111) and a length of the conductive spring piece (21) extending out of the first through hole (1042) are configured to be changed by actuating the first swing rod (10), and a length of the second extension portion (311) extending out of the second through hole (1044) is configured to be changed by actuating the second swing rod (30).
The adapter according to claim 1, wherein the first swing rod (10) comprises a first rotating member (11) and a first arm (12) extending outward from a sidewall of the first rotating member (11), an end of the housing (104) is further provided with a first sliding slot (1041) for the first arm 12 to extend outward, and the first arm (12) is configured to be slid along the first sliding slot (1041) to drive the first rotating member (11) to rotate.
The adapter according to claim 2, wherein the sidewall of the housing (104) is further provided with a third through hole (1045), the third through hole (1045) is located above the first through hole (1042), and the electrical connection assembly (20) further comprises a grounding spring piece (22), the grounding spring piece (22) is fixed to the first rotating member (11) and located above the conductive spring piece (21), and the grounding spring piece (22) is configured to rotate along with the first rotating member (11) and extends outward from the third through hole (1045).
The adapter according to claim 3, wherein a through slot (112) is formed in the first rotating member (11) and penetrates through the first rotating member (11), and the first swinging rod (10) further comprises a fixing member (113) arranged in the through slot (112), and the grounding spring piece (22) is arranged at an upper end of the fixing member (113), and the conductive spring piece (21) is partially arranged in the through slot (112) and located between the fixing member (113) and the first rotating member (11).
The adapter according to claim 4, wherein the first extension portion (111) comprises a first pressing piece (1111) fixed on a sidewall of the first rotating member (11) and a second pressing piece (1132) fixed on a sidewall of the fixing member (113), the first pressing piece (1111) and the second pressing piece (1132) abut against each other, and a conductive slot (1112) is formed between the first pressing piece (1111) and the second pressing piece (1132) for the conductive spring piece (21) to extend outward.
The adapter according to claim 2, wherein the first extension portion (111) is formed on a sidewall of the first rotating member (11), and first extension portions (111) are arranged in a pair and extending in opposite directions, the first extension portions (111) arranged in a pair have different thicknesses.
The adapter according to claim 6, wherein the anti-retraction assembly comprises a first bump (122) and a first limiting rib (1048), the first bump (122) is arranged on the first rotating member (11) in a protruding way, and a protruding direction of the first bump (122) is the same as an extending direction of one of the first extension portions (111); the first limiting rib (1048) is arranged in the housing (104), a side of the first limiting rib (1048) is configured to abut against the first bump (122), and the first arm (12) is configured to drive the first bump (122) to deform the first limiting rib (1048) under an action of an external force, so that the first bump (122) moves to another side of the first limiting rib (1048).
The adapter according to claim 1, wherein the second swing rod (30) comprises a second rotating member (31) and a second arm (32) extending outward from a sidewall of the second rotating member (31), and a sidewall of the housing (104) is further provided with a second sliding slot (1043) for the second arm (32) to extend outward, and the second arm (32) is configured to slide along the second sliding slot (1043) to drive the second rotating member (31) to rotate; the second extension portion (311) is formed on a sidewall of the second rotating member (31), and second extension portions (311) are arranged in a pair and extending in opposite directions, the second extensions (311) arranged in a pair have different thicknesses.
The adapter according to claim 8, wherein the anti-retraction assembly further comprises a second bump (322) and a second limiting rib (1049), the second bump (322) is arranged on the second rotating member (31) in a protruding way, and a protruding direction of the second bump (322) is the same as an extending direction of one of the second extension portions (311); the second limiting rib (1049) is arranged in the housing (104), a side of the second limit rib (1049) is configured to abut against the second bump (322), and the second arm (32) is configured to drive the second bump (322) to deform the second limit rib (1049) under an action of an external force, so that the second bump (322) moves to another side of the second limit rib (1049).
The adapter according to claim 1, wherein the adapter (103) further comprises a connection rod (105) located at a bottom of the housing (104), the connection rod (105) has a hollow structure, and an end of the connection rod (105) is provided with an annular wall (1051) extending radially, and the housing (104) is provided with a receiving chamber (1046) for the annular wall (1051) to be clamped, the connecting rod (105) is configured to be rotatable relative to the receiving cavity (1046), the annular wall (1051) is further provided with a third bump (1052), and a third limiting rib (1047) for abutting against the third bump (1052) is arranged in the receiving chamber (1046).
A guide rail assembly, comprising the adapter according to any one of claims 1-10 and a guide rail (102), wherein the guide rail (102) is concavely provided with a groove for accommodating a part of the housing (104), the adapter (103) is configured to be slidable along the groove, and a first guide groove (1021) for the first extension portion (111) to slide and a second guide groove (1022) for the second extension portion (311) to slide are formed in the groove.
The guide rail assembly according to claim 11, wherein the first extension portion (111) and the second extension portion (311) each have a first state and a second state, in the first state, an orthographic projection of the first extension portion (111) on a horizontal plane partially overlaps with an orthographic projection of the first guide groove (1021) on the horizontal plane, and an orthographic projection of the second extension portion (311) on the horizontal plane partially overlaps with an orthographic projection of the second guide groove (1022) on the horizontal plane, in the second state, the orthographic projection of the first extension portion (111) on the horizontal plane does not overlap with the orthographic projection of the first guide groove (1021) on the horizontal plane, and the orthographic projection of the second extension portion (311) on the horizontal plane does not overlap with the orthographic projection of the second guide groove (1022) on the horizontal plane.
The guide rail assembly according to claim 11, wherein the first guide groove (1021) and the second guide groove (1022) are asymmetrically arranged.
The guide rail assembly according to claim 11, wherein a third guide groove (1023) is further formed in the groove, and the third guide groove (1023) is located above the first guide groove (1021) or the second guide groove (1022).
A lighting fixture, comprising the adapter according to any one of claims 1-10 and a lamp body (101), wherein the adapter (103) is electrically connected with the lamp body (101) through the conductive spring piece (21).