Light spot adjusting structure applied to lamp and lighting device

Abstract

The utility model provides a light spot adjusting structure applied to a lamp and a lighting device. The light spot adjusting structure applied to the lamp comprises a plugging piece and a reflecting cover. A light channel is formed in the blocking piece, the blocking piece is used for blocking the light outlet of the lamp body, and the light outlet of the lamp body is opposite to the light channel. The reflecting cover blocks the light channel and is connected with the blocking piece, the reflecting cover is arranged in the direction deviating from the light outlet of the lamp body, a light spot shape control area is defined by the periphery of the inner wall of the end, away from the light outlet of the lamp body, of the reflecting cover, and the shape of the light spot shape control area is at least independently selected from a rectangle, a circle and an oval. According to the light spot adjusting structure applied to the lamp, under the condition that the lamp is not replaced, the light spots of the lamp can be adjusted and changed, then the number of idle lamps is reduced, and cost input of arrangement of different scenes is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of lamps, in particular to a light spot adjustment structure and a lighting device applied to lamps. Background Art

[0002] The light and shadow shape projected by a lamp on a plane is the light spot. With the development of lamps, according to different optical designs of lamps, circular light spots, square light spots, and even flower-shaped light spots have gradually emerged. Generally, the shape of the light spot of a lamp is fixed. For example, for a lamp that forms a square light spot, please refer to the Chinese utility model patent application with the application number 201220407751.1. After the light is projected onto the inner wall of the lamp box through a reflector, the inner wall will reflect the light to form a square light spot, that is, the lamp trims the light through the inner wall of the lamp housing so that the light is projected onto the plane to form a square light spot. If it is necessary to form a circular light spot at this place for different scenarios, it can only be achieved by replacing the lamp; also, please refer to the Chinese invention patent application with the application number 201510993929.3. It places LED chips at the bottom of corresponding reflecting cups one by one, and the LED chips emit light from the corresponding reflecting cups. The light outlet at the upper end of the reflecting cup is a rounded square, which can produce a square light spot. If it is necessary to form a circular light spot at this place for different scenarios, it can also only be achieved by replacing the lamp. For users, they need to configure multiple lighting lamps to adapt to different scenarios, which increases the number of idle lamps and results in a large cost investment. Content of the Utility Model

[0003] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a light spot adjustment structure and a lighting device applied to lamps that can adjust and change the light spot of the lamp without replacing the lamp, thereby reducing the number of idle lamps and reducing the cost investment for different scenario arrangements.

[0004] The purpose of the utility model is achieved through the following technical solutions:

[0005] A light spot adjustment structure applied to a lamp, comprising:

[0006] A plugging member, which is provided with a light channel and is used for plugging at the light outlet of the lamp body, and the light outlet of the lamp body is arranged opposite to the light channel;

[0007] A reflector, which is plugged at the light channel and is connected to the plugging member. The reflector is arranged in a direction away from the light outlet of the lamp body. The inner wall periphery at one end of the reflector away from the light outlet of the lamp body encloses a light spot shape control area, and the shape of the light spot shape control area is at least independently selected from a rectangle, a circle, and an ellipse.

[0008] In one embodiment, the plugging member and the reflector are of an integrally formed structure.

[0009] In one embodiment, the light spot adjusting structure applied to the lamp further includes a connecting member, the connecting member is connected to the plugging member, and the connecting member is used for connecting to the lamp body.

[0010] In one embodiment, the connecting member includes a first connecting portion and a second connecting portion both connected to the plugging member, the first connecting portion and the second connecting portion are oppositely arranged on two sides of the plugging member, and the first connecting portion and the second connecting portion are both used for connecting to the lamp body.

[0011] In one embodiment, the first connecting portion and the second connecting portion are both used for clamping onto the lamp body.

[0012] In one embodiment, the first connecting portion includes a first connecting body and a first clamping body, the first connecting body is connected to the plugging member, the first clamping body is connected to the plugging member through the first connecting body, the first clamping body and the second connecting portion are oppositely arranged on two sides of the plugging member, and at least part of the first clamping body protrudes from the plugging member and is used for clamping onto the lamp body.

[0013] In one embodiment, the second connecting portion includes a second connecting body and a second clamping body, the first connecting body is connected to the plugging member, the second clamping body is connected to the plugging member through the second connecting body, the second clamping body and the first connecting portion are oppositely arranged on two sides of the plugging member, and at least part of the second clamping body protrudes from the plugging member and is used for clamping onto the lamp body.

[0014] In one embodiment, the first connecting body and the plugging member are of an integrally formed structure.

[0015] In one embodiment, the second connecting body and the plugging member are of an integrally formed structure.

[0016] In one embodiment, the light spot adjusting structure applied to the lamp further includes at least one reinforcing rib, the reinforcing rib is arranged at the connection between the plugging member and the reflector, and the reinforcing rib is respectively connected to the plugging member and the reflector.

[0017] In one embodiment, one end face of the plugging member away from the light outlet of the lamp body is flush with one end of the reflector away from the light outlet of the lamp body, and the inner wall of the end of the plugging member away from the light outlet of the lamp body is connected to the outer wall of the end of the reflector away from the light outlet of the lamp body.

[0018] A lighting device includes a lamp body, a face ring, and the light spot adjustment structure applied to a lamp as described in any of the above embodiments. The lamp body is connected to the face ring, the light outlet of the lamp body is disposed opposite to the face ring, and the peripheral wall of the plugging member is connected to the inner wall of the face ring so that the plugging member plugs at the light outlet of the lamp body.

[0019] Compared with the prior art, the present utility model has at least the following advantages:

[0020] The light spot adjustment structure applied to a lamp of the present utility model enables the plugging member to plug at the light outlet of the lamp body, and the light outlet of the lamp body is disposed opposite to the light path. Thus, all the light from the light outlet of the lamp body will pass through the light path. Further, in cooperation with the reflective cover plugging at the light path, the inner wall periphery of the end of the reflective cover away from the light outlet of the lamp body encloses a light spot shape control area. That is, the reflective cover not only serves to improve the utilization rate of the light in the light path but also serves to block the light in the light path. Furthermore, the light in the light path is trimmed so that when the light is projected onto a plane, a light spot in the shape of the light spot shape control area is formed. The shape of the light spot shape control area is at least independently selected from a rectangle, a circle, and an ellipse. Without replacing the lamp, only by replacing the light spot adjustment structure applied to the lamp, the adjustment and change of the light spot of the lamp are realized. Thus, the number of idle lamps is reduced, and the cost input for different scene layouts is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model and should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0022] Figure 1 It is a schematic structural diagram of the light spot adjustment structure applied to a lamp according to an embodiment of the present utility model;

[0023] Figure 2 For Figure 1 Another schematic structural diagram of the light spot adjustment structure applied to a lamp shown;

[0024] Figure 3 For Figure 1 Another schematic structural diagram of the light spot adjustment structure applied to a lamp shown;

[0025] Figure 4 For Figure 1 A cross-sectional view of the light spot adjustment structure applied to a lamp shown;

[0026] Figure 5Another cross-sectional view of the light spot adjustment structure applied to a lamp as shown in Figure 1 Figure 1 ;

[0027] Figure 6 The usage state diagram of the light spot adjustment structure applied to a lamp as shown in Figure 1 Figure 1 ; Specific embodiments

[0028] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided so that the disclosure of the present invention can be understood more thoroughly and comprehensively.

[0029] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be a middle element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0031] This application provides a light spot adjustment structure applied to a lamp. The above-mentioned light spot adjustment structure applied to a lamp includes a plugging member and a reflector. The plugging member is provided with a light channel, and the plugging member is used to plug at the light outlet of the lamp body, and the light outlet of the lamp body is arranged opposite to the light channel. The reflector is plugged at the light channel and connected to the plugging member. The reflector is arranged in the direction away from the light outlet of the lamp body. The inner wall periphery of one end of the reflector away from the light outlet of the lamp body encloses a light spot shape control area, and the shape of the light spot shape control area is at least independently selected from a rectangle, a circle and an ellipse.

[0032] The above-mentioned light spot adjustment structure applied to a lamp enables the plugging member to plug at the light outlet of the lamp body. The light outlet of the lamp body is disposed opposite to the light path. In this way, all the light from the light outlet of the lamp body will pass through the light path. Further, in cooperation with the reflector covering the light path, the inner wall periphery of the end of the reflector away from the light outlet of the lamp body encloses a light spot shape control area. That is, the reflector not only serves to improve the utilization rate of the light in the light path, but also serves to block the light in the light path. Furthermore, the light in the light path is trimmed, resulting in a light spot having the shape of the light spot shape control area when the light is projected onto a plane. The shape of the light spot shape control area is at least independently selected from a rectangle, a circle, and an ellipse. Without replacing the lamp, only by replacing the light spot adjustment structure applied to the lamp, the adjustment and change of the light spot of the lamp are achieved. Furthermore, the number of idle lamps is reduced, and the cost investment for different scene layouts is reduced.

[0033] To better understand the light spot adjustment structure applied to a lamp of the present application, the following further explains the light spot adjustment structure applied to a lamp of the present application:

[0034] Please refer to Figures 1 to 3 , a light spot adjustment structure 10 applied to a lamp in an embodiment includes a plugging member 100 and a reflector 200. The plugging member 100 is provided with a light path 101. The plugging member 100 is used to plug at the light outlet of the lamp body, and the light outlet of the lamp body is disposed opposite to the light path 101. The reflector 200 plugs at the light path 101 and is connected to the plugging member 100. The reflector 200 is disposed in a direction away from the light outlet of the lamp body. The inner wall periphery of the end of the reflector 200 away from the light outlet of the lamp body encloses a light spot shape control area 201. The shape of the light spot shape control area 201 is at least independently selected from a rectangle, a circle, and an ellipse.

[0035] The above-mentioned light spot adjustment structure 10 applied to a lamp enables the plugging member 100 to be plugged at the light outlet of the lamp body. The light outlet of the lamp body is disposed opposite to the light channel 101. In this way, the light from the light outlet of the lamp body will all pass through the light channel 101. Further, in cooperation with the reflector 200 plugged at the light channel 101, the inner wall periphery of one end of the reflector 200 away from the light outlet of the lamp body encloses a light spot shape control area 201. That is, the reflector 200 not only serves to improve the utilization rate of the light in the light channel 101, but also serves to block the light in the light channel 101. Furthermore, the light in the light channel 101 is trimmed so that when the light is projected onto a plane, a light spot in the shape of the light spot shape control area 201 is formed. The shape of the light spot shape control area 201 is at least independently selected from a rectangle, a circle, and an ellipse. Without replacing the lamp, only by replacing the light spot adjustment structure 10 applied to the lamp, the adjustment and change of the light spot of the lamp are realized. Furthermore, the number of idle lamps is reduced, and the cost input for different scene arrangements is reduced.

[0036] In one embodiment, the side wall of the plugging member abuts against the inner wall of the light outlet of the lamp body. Further, the side wall of the plugging member abuts against the outer shell of the lamp body and plugs the light outlet of the lamp body. Furthermore, please refer to Figure 6 together. The side wall of the plugging member 100 abuts against the inner wall of the face ring 20. The face ring 20 is connected to the outer shell of the lamp body, and the face ring 20 is disposed opposite to the light outlet of the lamp body, so that the plugging member 100 plugs the light outlet of the lamp body.

[0037] Please refer to Figures 3 to 5 together. In one embodiment, the plugging member 100 and the reflector 200 are integrally formed structures, which is beneficial to improving the connection stability and connection compactness of the plugging member 100 and the reflector 200, and further improves the structural strength and structural compactness of the light spot adjustment structure 10 applied to the lamp. In addition, the processing procedures of the light spot adjustment structure 10 applied to the lamp are reduced, and the processing efficiency of the light spot adjustment structure 10 applied to the lamp is improved.

[0038] Please refer to Figures 1 to 3 together. In one embodiment, the light spot adjustment structure 10 applied to the lamp further includes a connecting member 300. The connecting member 300 is connected to the plugging member 100, and the connecting member 300 is used to connect to the lamp body, ensuring the effective connection of the plugging member 100 to the lamp body.

[0039] Please refer to Figures 1 to 3, in one embodiment, the connecting member 300 includes a first connecting portion 310 and a second connecting portion 320 both connected to the plugging member 100. The first connecting portion 310 and the second connecting portion 320 are oppositely arranged on both sides of the plugging member 100. The first connecting portion 310 and the second connecting portion 320 are both used for connecting to the lamp body, that is, the connection points between the plugging member 100 and the lamp body are increased, and the connection points of the plugging member 100 are evenly distributed, which is beneficial to the stable connection of the plugging member 100 to the lamp body.

[0040] Please refer to Figure 6 , in one embodiment, both the first connecting portion 310 and the second connecting portion 320 are used for being snap-connected to the lamp body. Further, both the first connecting portion 310 and the second connecting portion 320 are connected to the lamp body by being snap-connected to the face ring 20.

[0041] Please refer to Figures 1 to 3 , in one embodiment, the first connecting portion 310 includes a first connecting body 311 and a first snap body 312. The first connecting body 311 is connected to the plugging member 100. The first snap body 312 is connected to the plugging member 100 through the first connecting body 311. The first snap body 312 and the second connecting portion 320 are oppositely arranged on both sides of the plugging member 100. The first snap body 312 at least partially protrudes from the plugging member 100 and is used for being snap-connected to the lamp body. Further, the second connecting portion 320 includes a second connecting body 321 and a second snap body 322. The first connecting body 311 is connected to the plugging member 100. The second snap body 322 is connected to the plugging member 100 through the second connecting body 321. The second snap body 322 and the first connecting portion 310 are oppositely arranged on both sides of the plugging member 100. The second snap body 322 at least partially protrudes from the plugging member 100 and is used for being snap-connected to the lamp body. Further, the first snap body 312 and the second snap body 322 are oppositely arranged on both sides of the plugging member 100.

[0042] Please refer to Figures 3 to 5 , in one embodiment, the first snap body 312 and the first connecting body 311 are of an integrally formed structure, which improves the connection stability between the first snap body 312 and the first connecting body 311, and further improves the snap connection stability between the first connecting portion 310 and the lamp body. Further, the second snap body 322 and the second connecting body 321 are of an integrally formed structure, which improves the connection stability between the second snap body 322 and the second connecting body 321, and further improves the snap connection stability between the second connecting portion 320 and the lamp body.

[0043] Please refer to Figures 3 to 5, in one embodiment, the first connection body 311 and the plugging member 100 are of an integrally formed structure. Further, the second connection body 321 and the plugging member 100 are of an integrally formed structure, which improves the connection stability of the plugging member 100 on the lamp body.

[0044] Please refer to Figure 2 and Figure 4 , in one embodiment, the light spot adjustment structure 10 applied to a lamp further includes at least one reinforcing rib 400. The reinforcing rib 400 is disposed at the connection between the plugging member 100 and the reflector 200, and the reinforcing rib 400 is respectively connected to the plugging member 100 and the reflector 200. Further, the number of the reinforcing ribs 400 is multiple, and the multiple reinforcing ribs 400 are uniformly arranged on the outer wall of the reflector 200, which improves the connection strength between the plugging member 100 and the reflector 200, and improves the structural strength of the plugging member 100 and the reflector 200, and further improves the structural strength of the light spot adjustment structure 10 applied to the lamp.

[0045] Please refer to Figures 2 to 4 , in one embodiment, both the first connection body 311 and the second connection body 321 are connected to one side of the plugging member 100 close to the light outlet of the lamp body. Further, the first connection body 311 and the second connection body 321 are oppositely disposed on both sides of the reflector 200. It can be understood that the first connection body 311 and the second connection body 321 are relatively located on both sides of the plugging member 100, and in cooperation with the fact that both the first connection body 311 and the second connection body 321 are connected to one side of the plugging member 100 close to the light outlet of the lamp body, when the plugging member 100 is assembled at the light outlet of the lamp body, the first connection body 311 and the second connection body 321 play a guiding role, which improves the assembly smoothness of the plugging member 100 at the light outlet of the lamp body, and further improves the use convenience of the light spot adjustment structure 10 applied to the lamp.

[0046] In one embodiment, the number of the reinforcing ribs is two. One reinforcing rib is respectively connected to the plugging member, the reflector and the first connection body, and the other reinforcing rib is connected to the plugging member, the reflector and the second connection body. Further, please refer to Figures 2 to 4 , the number of the reinforcing ribs 400 is four, and the four reinforcing ribs 400 are uniformly arranged on the reflector 200. One reinforcing rib 400 is respectively connected to the plugging member 100, the reflector 200 and the first connection body 311, and the other reinforcing rib 400 is connected to the plugging member 100, the reflector 200 and the second connection body 321, which further improves the structural strength of the light spot adjustment structure 10 applied to the lamp.

[0047] Please refer to Figures 2 to 4, in one embodiment, the reinforcing rib 400, the reflector 200 and the plugging member 100 are integrally formed structures, further improving the structural strength and structural compactness of the light spot adjustment structure 10 applied to the lamp.

[0048] Please refer to Figures 3 to 5 , in one embodiment, the side wall of the reflector 200 abuts against the inner wall of the light passage 101 of the plugging member 100. Further, one end face of the plugging member 100 away from the light outlet of the lamp body is flush with one end of the reflector 200 away from the light outlet of the lamp body, and the inner wall of the end of the plugging member 100 away from the light outlet of the lamp body is connected to the outer wall of the end of the reflector 200 away from the light outlet of the lamp body, improving the connection strength between the reflector 200 and the plugging member 100. Further cooperating with the setting of the reinforcing rib 400, the connection strength between the reflector 200 and the plugging member 100 is further improved, and it is beneficial to improve the aesthetics of the light spot adjustment structure 10 applied to the lamp, and the user experience is better improved.

[0049] This application also provides a lighting device. The above-mentioned lighting device includes a lamp body, a face ring and the light spot adjustment structure applied to the lamp in any of the above embodiments. The lamp body is connected to the face ring, the light outlet of the lamp body is arranged opposite to the face ring, and the peripheral wall of the plugging member is connected to the inner wall of the face ring so that the plugging member plugs at the light outlet of the lamp body. Further, please refer to Figures 1 to 3 , the light spot adjustment structure 10 applied to the lamp includes a plugging member 100 and a reflector 200. The plugging member 100 is provided with a light passage 101. The plugging member 100 is used to plug at the light outlet of the lamp body, and the light outlet of the lamp body is arranged opposite to the light passage 101. The reflector 200 plugs at the light passage 101 and is connected to the plugging member 100. The reflector 200 is arranged in the direction away from the light outlet of the lamp body. The inner wall periphery of one end of the reflector 200 away from the light outlet of the lamp body encloses a light spot shape control area 201, and the shape of the light spot shape control area 201 is at least independently selected from a rectangle, a circle and an ellipse.

[0050] The above-mentioned lighting device adopts the light spot adjustment structure applied to the lamp, which is beneficial to the adaptability of different scene layouts, reduces the number of idle lamps, and reduces the cost investment for different scene layouts.

[0051] Compared with the prior art, the present utility model has at least the following advantages:

[0052] The light spot adjustment structure 10 applied to the lamp of the present utility model enables the plugging member 100 to be used for plugging at the light outlet of the lamp body. The light outlet of the lamp body is disposed opposite to the light channel 101. In this way, all the light from the light outlet of the lamp body will pass through the light channel 101. Further, in cooperation with the reflector 200 plugged at the light channel 101, the inner wall periphery of one end of the reflector 200 away from the light outlet of the lamp body encloses a light spot shape control area 201. That is, the reflector 200 not only serves to improve the utilization rate of the light in the light channel 101, but also serves to block the light in the light channel 101. Furthermore, the light in the light channel 101 is trimmed, resulting in a light spot having the shape of the light spot shape control area 201 when the light is projected onto a plane. The shape of the light spot shape control area 201 is at least independently selected from a rectangle, a circle, and an ellipse. Without replacing the lamp, only by replacing the light spot adjustment structure 10 applied to the lamp, the adjustment and change of the light spot of the lamp can be realized, thereby reducing the number of idle lamps and the cost investment for different scene layouts.

[0053] The above embodiments only express several implementation manners of the present utility model, and the description thereof is relatively specific and detailed. However, it should not be construed as a limitation to the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the utility model patent shall be subject to the appended claims.

Claims

1. A spot adjustment structure applied to a lamp, characterized in that, Comprising: A plugging member which is provided with a light channel and is used for plugging at the light outlet of the lamp body, and the light outlet of the lamp body is oppositely arranged to the light channel; A reflector which is plugged at the light channel and connected to the plugging member. The reflector is arranged in a direction away from the light outlet of the lamp body. The inner wall periphery of one end of the reflector away from the light outlet of the lamp body encloses a light spot shape control area, and the shape of the light spot shape control area is at least independently selected from a rectangle, a circle and an ellipse.

2. The light spot adjustment structure applied to a lamp according to claim 1, characterized in that, The plugging member and the reflector are of an integrally formed structure.

3. The light spot adjustment structure applied to a lamp according to claim 1, characterized in that, The light spot adjustment structure applied to the lamp further comprises a connecting member which is connected to the plugging member and is used for connecting to the lamp body.

4. The light spot adjustment structure applied to a lamp according to claim 3, wherein The connecting member comprises a first connecting portion and a second connecting portion both connected to the plugging member. The first connecting portion and the second connecting portion are oppositely arranged on two sides of the plugging member, and both the first connecting portion and the second connecting portion are used for connecting to the lamp body.

5. The light spot adjustment structure applied to a lamp according to claim 4, wherein, Both the first connecting portion and the second connecting portion are used for being clamped on the lamp body.

6. The light spot adjustment structure applied to a lamp according to claim 4, characterized in that, The first connecting portion comprises a first connecting body and a first clamping body. The first connecting body is connected to the plugging member, and the first clamping body is connected to the plugging member through the first connecting body. The first clamping body and the second connecting portion are oppositely arranged on two sides of the plugging member, and at least part of the first clamping body protrudes from the plugging member and is used for being clamped on the lamp body; and / or, The second connecting portion comprises a second connecting body and a second clamping body. The first connecting body is connected to the plugging member, and the second clamping body is connected to the plugging member through the second connecting body. The second clamping body and the first connecting portion are oppositely arranged on two sides of the plugging member, and at least part of the second clamping body protrudes from the plugging member and is used for being clamped on the lamp body.

7. The light spot adjustment structure applied to a lamp according to claim 6, wherein, The first connecting body and the plugging member are of an integrally formed structure; and / or, The second connecting body and the plugging member are of an integrally formed structure.

8. The light spot adjustment structure applied to a lamp according to claim 1, characterized in that The light spot adjustment structure applied to the lamp further comprises at least one reinforcing rib which is arranged at the connection between the plugging member and the reflector, and the reinforcing rib is respectively connected to the plugging member and the reflector.

9. The light spot adjustment structure applied to a lamp according to claim 1, wherein, One end face of the plugging member away from the light outlet of the lamp body is flush with one end of the reflector away from the light outlet of the lamp body, and the inner wall of the end of the plugging member away from the light outlet of the lamp body is connected to the outer wall of the end of the reflector away from the light outlet of the lamp body.

10. A lighting device, characterized in that, Comprising a lamp body, a face ring and the light spot adjustment structure applied to the lamp according to any one of claims 1 to 9. The lamp body is connected to the face ring, the light outlet of the lamp body is oppositely arranged to the face ring, and the peripheral wall of the plugging member is connected to the inner wall of the face ring so that the plugging member plugs at the light outlet of the lamp body.

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