CN220135337U - Tube lamp and lamp - Google Patents

Abstract

The utility model relates to the technical field of lamps, in particular to a down lamp and a lamp. The down lamp is applied to a lamp with an installation shell, the installation shell is provided with a limiting cavity for installing the down lamp, and the down lamp comprises a lamp body and an elastic limiting piece. The lamp body is provided with a peripheral wall, the peripheral wall is arranged around a preset central line, the lamp body is suitable for being movably limited in the limiting cavity, and the peripheral wall and the inner wall of the mounting shell are arranged at intervals relatively. The elastic limiting piece comprises a fixed end and a free end, and the fixed end and the free end are respectively positioned at two opposite ends of the elastic limiting piece; the fixed end is connected to the peripheral wall, the elastic limiting piece extends outwards relative to the peripheral wall to enable the free end and the peripheral wall to be arranged at intervals, the distance between the free end and the central line is greater than the distance between the fixed end and the central line, and the free end is used for elastically propping against the inner wall of the installation shell to limit the position of the down lamp relative to the installation shell. The down lamp is simple and quick to install.

Description

Tube lamp and lamp

Technical Field

The utility model relates to the technical field of lamps, in particular to a down lamp and a lamp.

Background

The down lamp is a lighting lamp which is embedded in a fixed place (such as a ceiling) to irradiate light in a specified direction, and is widely applied to various occasions needing lighting. The down lamp belongs to a directional lighting lamp, only the opposite face of the down lamp can receive light, the beam angle belongs to light condensation, the light is concentrated, the contrast between the light and the shade is strong, the object to be illuminated is highlighted, the lumen degree is high, and the quiet ambient atmosphere can be set off.

The down lamp generally includes a lamp body, an installation barrel and a light emitting unit, the installation barrel is generally embedded into a fixed place, the light emitting unit is installed in the lamp body, and the lamp body is installed in the fixed place through the installation barrel. When the lamp body and the mounting cylinder are dismounted, the lamp body and the mounting cylinder are usually dismounted by means of tools such as a screwdriver, so that the dismounting convenience of the down lamp is poor.

Disclosure of Invention

The utility model provides a down lamp and a lamp.

In a first aspect, the utility model provides a down lamp, which is applied to a lamp with a mounting shell, wherein the mounting shell is provided with a limiting cavity for mounting the down lamp, and the down lamp comprises a lamp body and an elastic limiting piece. The lamp body is provided with a peripheral wall, the peripheral wall is arranged around a preset central line, the lamp body is suitable for being movably limited in the limiting cavity, and the peripheral wall and the inner wall of the mounting shell are arranged at intervals relatively. The elastic limiting piece comprises a fixed end and a free end, and the fixed end and the free end are respectively positioned at two opposite ends of the elastic limiting piece; the fixed end is connected to the peripheral wall, the elastic limiting piece extends outwards relative to the peripheral wall to enable the free end and the peripheral wall to be arranged at intervals, the distance between the free end and the central line is greater than the distance between the fixed end and the central line, and the free end is used for elastically propping against the inner wall of the installation shell to limit the position of the down lamp relative to the installation shell.

In some alternative examples, the lamp body is provided with a containing cavity for installing the light-emitting unit, and the containing cavity forms a light outlet at one end of the lamp body; the free end is provided with a bevel edge, the bevel edge is provided with a first end and a second end which are opposite, the distance between the first end and the central line is smaller than the distance between the second end and the central line, and the second end is closer to the light outlet relative to the first end.

In some optional examples, the fixing end has a connecting edge, the connecting edge is attached to the peripheral wall and extends longitudinally along the peripheral wall, and an included angle between an extending direction of the connecting edge and a plane of the light outlet is greater than an included angle between an extending direction of the oblique side and a plane of the light outlet.

In some alternative examples, the distance between the first end and the centerline is less than the inner diameter of the mounting shell and the distance between the second end and the centerline is greater than the inner diameter of the mounting shell.

In some alternative examples, the free end is further provided with a vertical edge, which is continuous with the oblique edge and connected to the second end, the vertical edge extending in the same direction as the centerline.

In some alternative examples, the lamp body further includes a barrel portion and an outer edge portion, the outer peripheral wall is an outer surface of the barrel portion, the outer edge portion surrounds one end connected to the barrel portion, protrudes in a radial direction of the barrel portion, and the elastic limiting piece and the outer edge portion are arranged at intervals.

In some alternative examples, the radius of the outer rim is greater than the maximum distance between the free end and the centerline.

In some optional examples, the number of the elastic limiting members is plural, and the plural elastic limiting members are sequentially arranged at intervals along the circumferential direction of the down lamp.

In some alternative examples, the plurality of elastic limiting members are arranged in a central symmetry about a center line, or the plurality of elastic limiting members are arranged in a spiral surrounding.

In a second aspect, an embodiment of the present utility model further provides a lamp, including a mounting shell and a down lamp of any one of the above-mentioned embodiments, where the mounting shell is provided with a limiting cavity, and the down lamp is movably limited in the limiting cavity.

Compared with the prior art, the down lamp provided by the utility model is applied to a lamp, the lamp body is provided with the peripheral wall, the elastic limiting piece is arranged on the peripheral wall, and when the lamp body is limited in the limiting cavity, the elastic limiting piece is elastically propped against the inner wall of the mounting shell to limit the position of the down lamp relative to the mounting shell. The down lamp provided by the embodiment of the utility model utilizes the elastic potential energy of the elastic limiting piece to limit the position of the down lamp relative to the installation shell, and can be installed simply and conveniently by directly inserting the down lamp into the limiting cavity of the installation shell without other tools.

Drawings

In order to more clearly illustrate the technical solutions of the present utility model, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a lamp according to an embodiment of the utility model.

Fig. 2 is a schematic diagram of an exploded structure of the lamp shown in fig. 1.

Fig. 3 is an exploded view of the down lamp of the lamp of fig. 2.

Fig. 4 is a schematic plan view of the down lamp of fig. 2.

Fig. 5 is a schematic top plan view of the down lamp of fig. 2.

Fig. 6 is a schematic view of an exploded structure of a lamp body and an elastic stopper of the down lamp shown in fig. 2.

Fig. 7 is a schematic view of a partial perspective structure of the lamp shown in fig. 1.

FIG. 8 is a schematic view showing an angle between a connecting edge and a plane of the light outlet according to an embodiment of the down lamp shown in FIG. 4.

Fig. 9 is a schematic view showing an angle between a hypotenuse and a plane in which a light exit opening is located in another embodiment of the down lamp shown in fig. 4.

Fig. 10 is a schematic view of an exploded construction of the down lamp of fig. 2.

Description of the reference numerals: 100. a down lamp; 10. a lamp body; 101. an outer peripheral wall; 12. a cylinder portion; 14. an outer edge portion; 121. a housing chamber; 123. a light outlet; 125. a first via hole; 30. an elastic limiting piece; 32. a fixed end; 321. connecting edges; 34. a main body; 36. a free end; 361. a beveled edge; 3612. a first end; 3614. a second end; 363. a vertical side; 50. a light emitting unit; 52. a lamp panel; 54. a lamp shade; 70. a power circuit board; 72. a protective shell; 721. a second via hole; 300. a lamp; 301. a mounting shell; 303. a spacing cavity; 305. an opening; 307. and a third via 34.

Detailed Description

In order to enable those skilled in the art to better understand the present utility model, the following description will make clear and complete descriptions of the technical solutions according to the embodiments of the present utility model with reference to the accompanying drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As a particular component is referred to by some of the terms used in the description and claims, it should be understood by those skilled in the art that a hardware manufacturer may refer to the same component by different terms. The description and claims do not take the difference in name as a way of distinguishing between components, but rather take the difference in functionality of the components as a criterion for distinguishing. As used throughout the specification and claims, the word "comprise" and "comprises" are to be construed as "including, but not limited to"; by "substantially" is meant that a person skilled in the art can solve the technical problem within a certain error range, essentially achieving the technical effect.

Referring to fig. 1, an embodiment of the present utility model provides a down lamp 100, where the down lamp 100 is applied to a lamp 300, and the lamp 300 is used for being disposed in a building to provide illumination or decoration for the building, for example, the lamp 300 may be mounted on a ceiling of the building to irradiate light downwards, or may be mounted on a wall of the building to irradiate light to an opposite surface of the wall.

Referring to fig. 1 and 2, in the present embodiment, a lamp 300 may include a mounting case 301 and a down lamp 100. The mounting housing 301 is for mounting within the application environment of the down light 100, for example for mounting to a ceiling or wall of a building. The specific shape of the mounting case 301 is not limited in this specification, and for example, the mounting case 301 may be cylindrical, or the mounting case 301 may be a square cylinder or a cylinder of another shape. The specific shape of the mounting case 301 may be adjusted according to its mounting environment or its external design, and in this embodiment, the mounting case 301 is substantially cylindrical. The installation shell 301 is provided with a limiting cavity 303 for installing the down lamp 100, the limiting cavity 303 is a cylindrical cavity, the limiting cavity 303 penetrates through one end of the installation shell 301 to form an opening 305, and the opening 305 is used for installing the down lamp 100. The mounting shell 301 may be secured to the ceiling or wall by means of an insert, for example the end of the mounting shell 301 facing away from its opening 305 may be provided with holes, slots, protrusions or the like for connection to the wall or ceiling. The mounting shell 301 may be fixed by a reverse buckle, such as a spring buckle, for example, the mounting shell 301 may be connected with a spring buckle, and connected with the ceiling through the spring buckle.

In the present utility model, the terms "mounted," "connected," "secured," and the like are to be construed broadly, unless otherwise specifically indicated or defined. For example, the connection can be fixed connection, detachable connection or integral connection; can be mechanically or electrically connected; the connection may be direct, indirect via an intermediate medium, or communication between two elements, or only surface contact. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Referring to fig. 3, in the present embodiment, the down lamp 100 may include a lamp body 10 and an elastic limiting member 30, where the lamp body 10 is adapted to be movably limited in the limiting cavity 303. The lamp body 10 has an outer peripheral wall 101, and the elastic stopper 30 is disposed on the outer peripheral wall 101 of the lamp body 10, and when the lamp body 10 is limited in the limiting cavity 303, the outer peripheral wall 10 is disposed at a distance from the inner wall of the mounting case 301. The elastic limiting member 30 elastically abuts against the inner wall of the mounting case 301 to limit the position of the down lamp 100 relative to the mounting case 301. The down lamp 10 provided by the embodiment of the utility model utilizes the elastic potential energy of the elastic limiting piece 30 to limit the position of the down lamp relative to the installation shell 30, and can be installed simply and conveniently by directly inserting the down lamp 100 into the limiting cavity 303 of the installation shell 301 without other tools.

Referring to fig. 3 and 4 together, in the present embodiment, the lamp body 10 is used to mount a light emitting unit and is connected to a ceiling or a wall of a building through a mounting case 301. The lamp body 10 is provided with a receiving cavity 121 for mounting the light emitting unit, and the receiving cavity 121 forms a light outlet 123 at an end of the lamp body 10 remote from the mounting case 301 (shown in fig. 2). The lamp body 10 may include a barrel 12 and an outer rim 14. One end of the barrel 12 is used for being embedded in the limiting cavity 303, and the other end is connected to the outer edge 14. The outer peripheral wall 101 is the outer peripheral wall of the tube 12, and the outer peripheral wall 101 is provided around a predetermined center line O. The manner in which the outer peripheral wall 101 is circumferentially surrounded in this specification is not limited, and for example, the outer peripheral wall 101 may be circumferentially provided along the center line O, that is, the cylindrical portion 12 may be substantially cylindrical; alternatively, the outer peripheral wall 101 may be prismatic around the center line O, that is, the cylindrical portion 12 may be substantially prismatic. In the present embodiment, the outer peripheral wall 101 is circumferentially provided along the center line O, and the cylindrical portion 12 is substantially cylindrical.

The accommodating cavity 121 is opened in the barrel 12, and the light outlet 123 is located at one end of the barrel 12. The outer diameter of the cylindrical portion 12 gradually increases in the direction from the mounting case 301 to the light outlet 123, the increasing width of the outer diameter of the cylindrical portion 12 is not limited in this specification, and the increasing trend may be linear or nonlinear, or the outer peripheral wall 101 of the cylindrical portion 12 may include a plurality of areas of linearly increasing outer diameter which are sequentially continued, and the increasing areas of the plurality of areas of linearly increasing outer diameter may be the same or different in width. The outer diameter of the end of the barrel 12 near the top of the mounting shell 301 (i.e., the end of the mounting shell 301 facing away from the opening 14 thereof) is smaller than the outer diameter of the end of the barrel 12 near the light outlet 123, with the inner diameter of the barrel 12 varying substantially synchronously with its outer diameter. The outer diameter of the end of the tube 12 near the top of the mounting shell 301 (as shown in fig. 2) is smaller than the inner diameter of the mounting shell 301, the outer diameter of the end of the tube 12 connected to the outer edge 14 is larger than the inner diameter of the mounting shell 301, and the change of the outer diameter of the tube 12 enables the fitting of the mounting shell 301 and the elastic limiting member 30 on the outer peripheral wall 101 to be more convenient to achieve interference fit, so that the stability of the connection of the mounting shell 301 and the lamp body 10 is improved.

Referring to fig. 1 and 5, the outer edge 14 is connected to the outer peripheral wall 101 and is located at an end of the tube 12 remote from the mounting case 301, and the outer edge 14 protrudes in a radial direction of the tube 12 with respect to the outer peripheral wall 101 to form a "cap" member with the tube 12. The outer edge portion 14 has a substantially annular plate shape, and the outer diameter of the outer edge portion 14 is larger than the outer diameter of the mounting case 301. When the down lamp 100 is mounted on the mounting shell 301, that is, when the barrel 12 is embedded in the limiting cavity 303, the outer edge 14 protrudes radially relative to the outer peripheral wall of the mounting shell 301 along the mounting shell 301, so that the mounting shell 301 can be shielded, the aesthetic degree of the lamp 300 is improved, the convenience of mounting and dismounting the lamp body 100 relative to the mounting shell 301 is improved, and a user can easily hold the outer edge 14 to pull the lamp body 10 out of the mounting shell 301.

Referring to fig. 2 and 3, in the present embodiment, an elastic limiting member 30 is used to connect between the barrel 12 and the mounting shell 301 to limit the position of the down lamp 100 relative to the mounting shell 301. Wherein, the connection can be fixed connection, detachable connection or integral connection; may be directly connected, may be indirectly connected through an intermediate medium, or may be in surface contact only. In the present embodiment, the elastic stopper 30 may be fixedly connected to the barrel 12; the elastic stopper 30 is in contact connection with the inner wall surface of the mounting case 301, specifically, when the barrel portion 12 is embedded in the stopper cavity 303, the elastic stopper 30 is elastically held against the inner wall of the mounting case 301.

Referring to fig. 4 again, the specific structure of the elastic limiting element 30 is not limited in this specification, for example, the elastic limiting element 30 may be a member capable of having elastic potential energy, such as a spring plate, a rubber member, a spring member, or the like. In this embodiment, the elastic limiting member 30 is a spring plate, and the elastic limiting member 30 may be made of stainless steel, bronze, brass, or the like. The elastic stopper 30 may include a fixed end 32, a body 34, and a free end 36, and the fixed end 32 and the free end 36 are respectively connected to opposite ends of the body 34. The fixed end 32 may be fixedly attached to the outer peripheral wall 101, for example, by being fixed to the tube 12 by a screw, and the fixed end 32 is attached to the outer peripheral wall 101 to increase the contact area with the outer peripheral wall 101, thereby improving the stability of the connection of the fixed end 32 and the tube 12.

The fixed end 32 has a connecting edge 321, and the connecting edge 321 is attached to the outer peripheral wall 101 and extends in the longitudinal direction of the outer peripheral wall 101 (i.e., extends from an end of the tube 12 facing away from the light outlet 123 to an end thereof adjacent to the light outlet 123), and it is considered that the longitudinal direction of the outer peripheral wall 101 is substantially the same as the direction of the predetermined center line O, and the extending direction of the connecting edge 321 is also substantially the same as the direction of the predetermined center line O. When the cross-sectional profile of the outer peripheral wall 101 along the center line O is substantially straight, the connecting edge 321 extends along the approximately straight profile line of the outer peripheral wall 101, and is also substantially straight; when the cross-sectional profile of the peripheral wall 101 along the center line O is substantially a curve, a circular arc line, or the like, the connecting edge 321 extends along the profile line of the peripheral wall 101, and is also substantially a curve, a circular arc line, or the like. The angle between the extending direction of the connecting side 321 and the plane where the light outlet 123 is located is set to be an angle a, and if the connecting side 321 is substantially a straight line, the extending direction of the connecting side 321 is the length direction of the connecting side 321 itself. If the connecting edge 321 is substantially curved or arc, the extending direction of the connecting edge 321 refers to the extending direction of the whole connecting edge 321, i.e. the direction of the connecting line between the two ends of the connecting edge 321.

Referring to fig. 4, 5 and 6, the main body 34 extends outwardly relative to the peripheral wall 101 such that the free end 36 is spaced from the peripheral wall 101, and the main direction of extension of the main body 34 intersects the radial direction of the barrel 12. As one example, the body 34 is generally helically expanded relative to the peripheral wall 101. The surface of the main body 34 is disposed in a substantially arc shape, and the surface of the main body 34 may include an arc surface that is curved longitudinally (in the direction of the center line O) and an arc surface that is curved in the radial direction of the barrel 12, the arc surfaces of the two arc surfaces intersecting, and both of the arc surfaces being recessed away from the center line O. Specifically, in the embodiment shown in fig. 6, the arc of the longitudinally curved arc surface is L1, the arc of the radially curved arc surface of the barrel 12 is L2, L1 and L2 intersect, the center of L1 is located on the side of the main body 34 close to the center line O, and the center of L2 is also located on the side of the main body 34 close to the center line O. During installation, the bending design of the main body 34 is more convenient for the elastic limiting piece 30 to deform and slide into the limiting cavity 303 when the barrel part 12 and the installation shell 301 are in plug-in fit, so that the installation smoothness and stability are improved.

In this embodiment, the distance between the free end 36 and the center line O is greater than the distance between the fixed end 32 and the center line O, as shown in fig. 5. A circle having a radius of the distance between the free end 36 and the center line O surrounds a circle having a radius of the distance between the fixed end 32 and the center line O. The free end 36 is adapted to resiliently abut against an inner wall of the mounting housing 301 (shown in fig. 2) to limit the position of the down lamp 100 relative to the mounting housing 301. It should be understood that "an element abuts against another element" in this specification, it should be understood that the two may abut directly or indirectly (e.g., when there is an intervening element therebetween), e.g., the other element is mounted on the intervening element, and the element may abut against the intervening element, thereby "abutting against the other element". In the present embodiment, when the barrel portion 12 of the down lamp 100 is limited in the limiting cavity 303, the free end 36 directly abuts against the inner wall of the mounting shell 301. Referring to fig. 5, the maximum distance between the end of the free end 36 and the center line O is smaller than the radius of the outer rim 14, and the outer rim 14 can shield the elastic stopper 30.

Referring to fig. 4, 5 and 7, the free end 36 is provided with a beveled edge 361, the beveled edge 361 being inclined with respect to the centerline O, the beveled edge 361 being adapted to provide a guide for the resilient stop member 30 to slide into the mounting housing 301 during installation. The beveled edge 361 has opposite first and second ends 3612, 3614, and the second end 3614 is closer to the light outlet 123 than the first end 3612, i.e., the first end 3612 enters the spacing cavity 303 than the second end 3614 when the down lamp 100 is mounted to the mounting housing 301. The distance between the first end 3612 and the centerline O is less than the distance between the second end 3614 and the centerline O. The distance between the first end 3612 and the centerline O is less than the inner diameter of the mounting housing 301 so that the resilient limiter 30 can smoothly enter the mounting housing 301 during installation. When the down lamp 100 is not mounted on the mounting shell 301, and the elastic limiting member 30 is in a relaxed state, the distance between the second end 3614 and the center line O is greater than the inner diameter of the mounting shell 301, so that the elastic limiting member 30 can have elastic potential energy during mounting, and thus can be abutted against the inner wall of the mounting shell 301, and the effect of limiting the position of the down lamp 100 relative to the mounting shell 301 is achieved.

When in installation, a user aligns the down lamp 100 with the opening of the limiting cavity 303 of the installation shell 301, and holds the outer edge 14 or other parts to push the barrel 12 into the limiting cavity 303 along the direction of the central line O. During the pushing process, the first end 3612 of the inclined side 361 at the free end 36 of the elastic stopper 30 contacts the inner wall of the mounting case 301, and then the inclined side 361 deforms to slide into the mounting case 301 against the inner peripheral wall of the mounting case 301, the free end 36 moves toward the barrel portion 12, and the main body 34 bends to deform. Second end 3614 of beveled edge 361 is deformed against the inner wall of mounting housing 301 to limit the position of downlight 100 relative to mounting housing 301. The elastic limiting member 30 and the outer edge 14 are disposed at a distance from one side of the elastic limiting member 30, so that when the elastic limiting member 30 is subjected to an external force (e.g., the action of the mounting shell 301 on the elastic limiting member 30 during the process of embedding the barrel 12 into the mounting shell 301), the free end 36 of the elastic limiting member can move near the barrel 12.

In order to provide the elastic stopper 30 with a sufficient amount of deformation, the main body 34 is twisted toward the barrel 12 in the direction from the fixed end 32 to the free end 36, so that the main body 34 assumes a flared state in the direction from the fixed end 32 to the free end 36. In the embodiment shown in fig. 8 and 9, the included angle a between the extending direction of the connecting edge 321 of the fixed end 32 and the plane of the light outlet 123 is larger than the included angle b between the extending direction of the inclined edge 361 of the free end 36 and the plane of the light outlet 123.

When the down lamp 100 needs to be repaired or replaced, a user only needs to hold the outer rim 14 or rotate the barrel 12 at other positions and pull the barrel 12 out of the mounting case 301, wherein the rotation direction of the barrel 12 is along the direction from the second end 3614 to the first end 3612 of the inclined side 361 (clockwise direction in the drawing). The elastic stopper 30 is pressed between the mounting case 301 and the tube 12, and the elastic stopper 30 tends to return to its original state as the tube 12 is pulled out. The second end 3614 of the beveled edge 361 of the free end 36 is exposed to the outside of the mounting shell 301 and has a tendency to return to its original position, thereby providing a force pushing the mounting shell 301 away so that the barrel 12 is more easily pulled out of the restraining cavity 303, and is simple and labor-saving to operate.

In order to improve the stability of the barrel portion 12 limited to the mounting case 301, in this embodiment, the free end 36 is further provided with a vertical edge 363, and the vertical edge 363 is used to increase the contact area between the free end 36 and the inner wall of the mounting case 301 during mounting, so that the connection between the barrel portion 12 and the mounting case 301 is more stable. The vertical edge 363 is continuous with the oblique edge 361 and is connected to the second end 3614 of the oblique edge 361, and the extending direction of the vertical edge 363 and the extending direction of the center line O are substantially the same, and as an example, the distances between the respective points on the oblique edge 363 and the center line O are substantially the same. During installation, the inclined edge of the elastic limiting piece 30 slides into the limiting cavity 303 along the inner peripheral wall of the installation shell 301, and the vertical edge 363 deforms and presses the inner wall of the installation shell 301. The vertical edge 363 can increase the contact area between the elastic stopper 30 and the inner wall of the mounting case 301, thereby increasing friction force and ensuring stable mounting of the down lamp 100 in the mounting case 301 as much as possible.

The number of the elastic stoppers 30 is not limited in the present specification, and for example, the number of the elastic stoppers 30 may be one, and in this embodiment, a holding member (not shown) may be further provided between the outer peripheral wall 101 and the mounting case 301, the holding member being provided on a side of the outer peripheral wall 101 facing away from the elastic stoppers 30 to support the inner wall of the mounting case 301 at the time of mounting, so that the elastic stoppers 30 can be pressed by the mounting case 301.

The number of the elastic limiting members 30 may be plural, and the plural elastic limiting members 30 may be sequentially arranged at intervals along the circumferential direction of the barrel 12. The plurality of elastic stoppers 30 may be arranged substantially at equal intervals, and the plurality of elastic stoppers 30 further improves the stability of mounting the down lamp 100 to the mounting case 301. The elastic limiting members 30 have the same structure and are spirally arranged around or are arranged in a central symmetry manner about the center line O. If the plurality of elastic stoppers 30 are disposed in a central symmetry with respect to the center line O, the number of elastic stoppers 30 may be four. If the elastic limiting members 30 are arranged in a spiral surrounding manner, the elastic limiting members 30 can be arranged around the outside of the barrel 12 clockwise or anticlockwise, and the radian and the direction of the bending of the main body 34 of the elastic limiting members 30 are the same.

In this embodiment, the plurality of elastic stoppers 30 are disposed in a spiral surrounding manner. In the illustrated embodiment, the number of the elastic stoppers 30 is three, and the three elastic stoppers 30 are spirally wound around the center line O, and are wound around the outside of the barrel 12 in the counterclockwise direction. The elastic limiting members 30 are spirally wound or are arranged in a central symmetry manner about the central line O, so that the down lamp 100 can be smoothly detached by rotating in one direction when the down lamp 100 is detached.

Referring to fig. 10, in the present embodiment, the down lamp 100 may further include a light emitting unit 50, where the light emitting unit 50 is disposed in the accommodating cavity 121 of the barrel 12, and is used for emitting light through the light emitting port 123 to provide illumination. The specific type of the light emitting unit 50 is not limited in this specification, and for example, the light emitting unit 50 may be a bulb, a lamp panel, or a patch light source. In the present embodiment, the light emitting unit 50 employs a lamp panel 52. The light panel 52 may be fixedly coupled to the inner wall of the barrel 12. In order to protect the light panel 52, in the present embodiment, the down lamp 100 may further include a lamp cover 54, where the lamp cover 54 is connected to the barrel 12 and covers the light outlet 123. The lamp housing 54 may be configured to be removably coupled to the barrel 12 to facilitate replacement or repair of the lamp panel 52. The lamp shade 54 plays a role in protecting the light-emitting unit 50, and on the other hand, can shield the strong light emitted by the light-emitting unit 50, filter the strong light, make the light become softer, and avoid the uncomfortable feeling of eyes of a user caused by too strong light.

The down lamp 100 may further include a power circuit board 70, where the power circuit board 70 is electrically connected between the light emitting unit 50 and a power line in a building wall where the mounting case 301 is located, so as to supply power to the light emitting unit 50. The specification does not limit the specific type of the power circuit board 70, and for example, the power circuit board 70 may be at least one of the following circuit boards: single-panel, double-panel, multi-layer boards. The power circuit board 70 is disposed at an end of the barrel 12 facing away from the light outlet 123.

In order to facilitate installation and protect the power circuit board 70, in this embodiment, the down lamp 100 may further include a protective housing 72, where the protective housing 72 is connected to an end of the barrel 12 facing away from the light outlet 123, the protective housing 72 is provided with an installation space for installing the power circuit board 70, and the power circuit board 70 is connected to an inner wall of the protective housing 72. The power circuit board 70 may be electrically connected to the light emitting unit 50 through a cable, and a surface of one end of the barrel portion 12 facing away from the light outlet 123 may be provided with a first wire passing through hole 125, where the first wire passing through hole 125 penetrates through the barrel portion 12 along the direction of the center line O, so that the accommodating cavity 121 is communicated with the installation space in the protective housing 72, so that the cable electrically connected between the power circuit board 70 and the light emitting unit 50 passes through. Likewise, the power circuit board 70 may be electrically connected to a power line within the building wall where the mounting case 301 is located through a cable. The surface of the end of the protective housing 72 facing away from the barrel 123 may be provided with a second wire passing through hole 721, and the second wire passing through hole 721 penetrates the protective housing 72 along the direction of the center line O, so that the installation space in the protective housing 72 is communicated with the limiting cavity 303; referring to fig. 2, the mounting shell 301 may also be provided with a third wire passing through hole 307 to allow the limiting cavity 303 to communicate with the outside of the mounting shell 301. The second and third via holes 721 and 307 facilitate the passage of cables electrically connected between the power circuit board 70 and the power lines within the wall.

In the present disclosure, the terms "first," "second," and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying a number of technical features being indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

When the down lamp 100 provided by the utility model is applied to the lamp 300, a user aims the down lamp 100 at the opening of the limiting cavity 303 of the mounting shell 301, holds the outer edge part 14 and pushes the barrel part 12 into the limiting cavity 303 along the direction of the central line O. During the pushing process, the first end 3612 of the inclined side 361 at the free end 36 of the elastic stopper 30 contacts the inner wall of the mounting case 301, and then the inclined side 361 deforms to slide into the mounting case 301 against the inner peripheral wall of the mounting case 301, the free end 36 moves toward the barrel portion 12, and the main body 34 bends to deform. Second end 3614 of beveled edge 361 and vertical edge 363 are deformed to press against the inner wall of mounting housing 301 to thereby limit the position of down lamp 100 relative to mounting housing 301.

When the down lamp 100 is to be repaired or replaced, the user only has to hold the outer rim 14 to rotate the barrel 12 and pull the barrel 12 out of the mounting case 301. Wherein the rotation direction of the barrel 12 is in a direction from the second end 3614 to the first end 3612 of the inclined side 361. The elastic stopper 30 is pressed between the mounting case 301 and the tube 12, and the elastic stopper 30 tends to return to its original state as the tube 12 is pulled out. The second end 3614 of the beveled edge 361 of the free end 36 is exposed to the outside of the mounting shell 301 and has a tendency to return to its original position, thereby providing a force pushing the mounting shell 301 away so that the barrel 12 is more easily pulled out of the restraining cavity 303, and is simple and labor-saving to operate.

The down lamp 10 provided by the embodiment of the utility model utilizes the elastic potential energy of the elastic limiting piece 30 to limit the position of the down lamp 100 relative to the mounting shell 30, and only needs to be directly inserted into the limiting cavity 303 of the mounting shell 301 when being mounted, and the down lamp 100 is rotationally pulled out when being dismounted, so that other tools are not needed, and the down lamp is simple and convenient.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting. Although the utility model has been described in detail with reference to the foregoing embodiments, it will be appreciated by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some of the technical features thereof can be replaced by equivalents. Such modifications and substitutions do not drive the essence of the corresponding technical solutions to depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (10)

1. A down lamp, characterized by being applied to a lamp having a mounting case provided with a spacing cavity for mounting the down lamp, the down lamp comprising:

the lamp body is provided with an outer peripheral wall, the outer peripheral wall is arranged around a preset central line, the lamp body is suitable for being movably limited in the limiting cavity, and the outer peripheral wall and the inner wall of the mounting shell are arranged at intervals relatively; and

the elastic limiting piece comprises a fixed end and a free end, and the fixed end and the free end are respectively positioned at two opposite ends of the elastic limiting piece; the fixed end is connected to the peripheral wall, the elastic limiting piece extends outwards relative to the peripheral wall to enable the free end and the peripheral wall to be arranged at intervals, the distance between the free end and the central line is greater than that between the fixed end and the central line, and the free end is used for elastically propping against the inner wall of the installation shell to limit the position of the down lamp relative to the installation shell.

2. The down lamp of claim 1, wherein the lamp body is provided with a containing cavity for installing a light emitting unit, and the containing cavity forms a light outlet at one end of the lamp body; the free end is provided with a bevel edge, the bevel edge is provided with a first end and a second end which are opposite to each other, the distance between the first end and the central line is smaller than the distance between the second end and the central line, and the second end is closer to the light outlet relative to the first end.

3. The down lamp of claim 2, wherein the fixed end has a connecting edge, the connecting edge is attached to the peripheral wall and extends longitudinally along the peripheral wall, and an included angle between an extending direction of the connecting edge and a plane of the light outlet is greater than an included angle between an extending direction of the oblique side and the plane of the light outlet.

4. The down lamp of claim 2, wherein a distance between the first end and the centerline is less than an inner diameter of the mounting housing and a distance between the second end and the centerline is greater than the inner diameter of the mounting housing.

5. The down lamp of claim 2, wherein the free end is further provided with a vertical edge, the vertical edge continuing with the oblique edge and being connected to the second end, the vertical edge extending in the same direction as the centerline.

6. The down lamp of claim 1, wherein the lamp body further comprises a barrel portion and an outer edge portion, the outer peripheral wall is an outer surface of the barrel portion, the outer edge portion is connected to one end of the barrel portion in a surrounding mode, protrudes in a radial direction of the barrel portion, and the elastic limiting piece is arranged at intervals from the outer edge portion.

7. The downlight of claim 6, wherein the radius of the outer rim is greater than the maximum distance between the free end and the centerline.

8. The down lamp of any one of claims 1-7, wherein a plurality of elastic limiting members are provided, and the plurality of elastic limiting members are sequentially arranged at intervals along the circumferential direction of the down lamp.

9. The down lamp of claim 8, wherein the plurality of elastic limiting members are arranged in a central symmetry with respect to the center line, or the plurality of elastic limiting members are arranged in a spiral surrounding.

10. A light fixture, comprising:

the mounting shell is provided with a limiting cavity; and

a down lamp as in any one of claims 1-9, the down lamp being movably confined to the confinement chamber.